261851940

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:253

約数の個数: 288

約数和(自身を含む): 968647680

約数和(自身を除く): 706795740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 43, 45, 54, 60, 63, 70, 81, 84, 86, 90, 105, 108, 126, 129, 135, 140, 162, 172, 179, 180, 189, 210, 215, 243, 252, 258, 270, 301, 315, 324, 358, 378, 387, 405, 420, 430, 486, 516, 537, 540, 567, 602, 630, 645, 716, 756, 774, 810, 860, 895, 903, 945, 972, 1074, 1134, 1161, 1204, 1215, 1253, 1260, 1290, 1505, 1548, 1611, 1620, 1701, 1790, 1806, 1890, 1935, 2148, 2268, 2322, 2430, 2506, 2580, 2685, 2709, 2835, 3010, 3222, 3402, 3483, 3580, 3612, 3759, 3780, 3870, 4515, 4644, 4833, 4860, 5012, 5370, 5418, 5670, 5805, 6020, 6265, 6444, 6804, 6966, 7518, 7697, 7740, 8055, 8127, 8505, 9030, 9666, 10449, 10740, 10836, 11277, 11340, 11610, 12530, 13545, 13932, 14499, 15036, 15394, 16110, 16254, 17010, 17415, 18060, 18795, 19332, 20898, 22554, 23091, 23220, 24165, 24381, 25060, 27090, 28998, 30788, 32220, 32508, 33831, 34020, 34830, 37590, 38485, 40635, 41796, 43497, 45108, 46182, 48330, 48762, 52245, 53879, 54180, 56385, 57996, 67662, 69273, 69660, 72495, 73143, 75180, 76970, 81270, 86994, 92364, 96660, 97524, 101493, 104490, 107758, 112770, 115455, 121905, 135324, 138546, 144990, 146286, 153940, 161637, 162540, 169155, 173988, 202986, 207819, 208980, 215516, 217485, 225540, 230910, 243810, 269395, 277092, 289980, 292572, 304479, 323274, 338310, 346365, 365715, 405972, 415638, 434970, 461820, 484911, 487620, 507465, 538790, 608958, 623457, 646548, 676620, 692730, 731430, 808185, 831276, 869940, 969822, 1014930, 1039095, 1077580, 1217916, 1246914, 1385460, 1454733, 1462860, 1522395, 1616370, 1870371, 1939644, 2029860, 2078190, 2424555, 2493828, 2909466, 3044790, 3117285, 3232740, 3740742, 4156380, 4364199, 4849110, 5818932, 6089580, 6234570, 7273665, 7481484, 8728398, 9351855, 9698220, 12469140, 13092597, 14547330, 17456796, 18703710, 21820995, 26185194, 29094660, 37407420, 43641990, 52370388, 65462985, 87283980, 130925970, 261851940]

約数ペア:

[(1, 261851940), (2, 130925970), (3, 87283980), (4, 65462985), (5, 52370388), (6, 43641990), (7, 37407420), (9, 29094660), (10, 26185194), (12, 21820995), (14, 18703710), (15, 17456796), (18, 14547330), (20, 13092597), (21, 12469140), (27, 9698220), (28, 9351855), (30, 8728398), (35, 7481484), (36, 7273665), (42, 6234570), (43, 6089580), (45, 5818932), (54, 4849110), (60, 4364199), (63, 4156380), (70, 3740742), (81, 3232740), (84, 3117285), (86, 3044790), (90, 2909466), (105, 2493828), (108, 2424555), (126, 2078190), (129, 2029860), (135, 1939644), (140, 1870371), (162, 1616370), (172, 1522395), (179, 1462860), (180, 1454733), (189, 1385460), (210, 1246914), (215, 1217916), (243, 1077580), (252, 1039095), (258, 1014930), (270, 969822), (301, 869940), (315, 831276), (324, 808185), (358, 731430), (378, 692730), (387, 676620), (405, 646548), (420, 623457), (430, 608958), (486, 538790), (516, 507465), (537, 487620), (540, 484911), (567, 461820), (602, 434970), (630, 415638), (645, 405972), (716, 365715), (756, 346365), (774, 338310), (810, 323274), (860, 304479), (895, 292572), (903, 289980), (945, 277092), (972, 269395), (1074, 243810), (1134, 230910), (1161, 225540), (1204, 217485), (1215, 215516), (1253, 208980), (1260, 207819), (1290, 202986), (1505, 173988), (1548, 169155), (1611, 162540), (1620, 161637), (1701, 153940), (1790, 146286), (1806, 144990), (1890, 138546), (1935, 135324), (2148, 121905), (2268, 115455), (2322, 112770), (2430, 107758), (2506, 104490), (2580, 101493), (2685, 97524), (2709, 96660), (2835, 92364), (3010, 86994), (3222, 81270), (3402, 76970), (3483, 75180), (3580, 73143), (3612, 72495), (3759, 69660), (3780, 69273), (3870, 67662), (4515, 57996), (4644, 56385), (4833, 54180), (4860, 53879), (5012, 52245), (5370, 48762), (5418, 48330), (5670, 46182), (5805, 45108), (6020, 43497), (6265, 41796), (6444, 40635), (6804, 38485), (6966, 37590), (7518, 34830), (7697, 34020), (7740, 33831), (8055, 32508), (8127, 32220), (8505, 30788), (9030, 28998), (9666, 27090), (10449, 25060), (10740, 24381), (10836, 24165), (11277, 23220), (11340, 23091), (11610, 22554), (12530, 20898), (13545, 19332), (13932, 18795), (14499, 18060), (15036, 17415), (15394, 17010), (16110, 16254)]