256985190

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:344

約数の個数: 256

約数和(自身を含む): 875888640

約数和(自身を除く): 618903450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 47, 54, 55, 63, 66, 70, 77, 90, 94, 99, 105, 110, 126, 135, 141, 154, 165, 189, 198, 210, 231, 235, 263, 270, 282, 297, 315, 329, 330, 378, 385, 423, 462, 470, 495, 517, 526, 594, 630, 658, 693, 705, 770, 789, 846, 945, 987, 990, 1034, 1155, 1269, 1315, 1386, 1410, 1485, 1551, 1578, 1645, 1841, 1890, 1974, 2079, 2115, 2310, 2367, 2538, 2585, 2630, 2893, 2961, 2970, 3102, 3290, 3465, 3619, 3682, 3945, 4158, 4230, 4653, 4734, 4935, 5170, 5523, 5786, 5922, 6345, 6930, 7101, 7238, 7755, 7890, 8679, 8883, 9205, 9306, 9870, 10395, 10857, 11046, 11835, 12361, 12690, 13959, 14202, 14465, 14805, 15510, 16569, 17358, 17766, 18095, 18410, 20251, 20790, 21714, 23265, 23670, 24722, 26037, 27615, 27918, 28930, 29610, 32571, 33138, 35505, 36190, 37083, 40502, 43395, 44415, 46530, 49707, 52074, 54285, 55230, 60753, 61805, 65142, 69795, 71010, 74166, 78111, 82845, 86527, 86790, 88830, 97713, 99414, 101255, 108570, 111249, 121506, 123610, 130185, 135971, 139590, 156222, 162855, 165690, 173054, 182259, 185415, 195426, 202510, 222498, 248535, 259581, 260370, 271942, 303765, 325710, 333747, 364518, 370830, 390555, 407913, 432635, 488565, 497070, 519162, 546777, 556245, 607530, 667494, 679855, 778743, 781110, 815826, 865270, 911295, 951797, 977130, 1093554, 1112490, 1223739, 1297905, 1359710, 1557486, 1668735, 1822590, 1903594, 2039565, 2336229, 2447478, 2595810, 2733885, 2855391, 3337470, 3671217, 3893715, 4079130, 4672458, 4758985, 5467770, 5710782, 6118695, 7342434, 7787430, 8566173, 9517970, 11681145, 12237390, 14276955, 17132346, 18356085, 23362290, 25698519, 28553910, 36712170, 42830865, 51397038, 85661730, 128492595, 256985190]

約数ペア:

[(1, 256985190), (2, 128492595), (3, 85661730), (5, 51397038), (6, 42830865), (7, 36712170), (9, 28553910), (10, 25698519), (11, 23362290), (14, 18356085), (15, 17132346), (18, 14276955), (21, 12237390), (22, 11681145), (27, 9517970), (30, 8566173), (33, 7787430), (35, 7342434), (42, 6118695), (45, 5710782), (47, 5467770), (54, 4758985), (55, 4672458), (63, 4079130), (66, 3893715), (70, 3671217), (77, 3337470), (90, 2855391), (94, 2733885), (99, 2595810), (105, 2447478), (110, 2336229), (126, 2039565), (135, 1903594), (141, 1822590), (154, 1668735), (165, 1557486), (189, 1359710), (198, 1297905), (210, 1223739), (231, 1112490), (235, 1093554), (263, 977130), (270, 951797), (282, 911295), (297, 865270), (315, 815826), (329, 781110), (330, 778743), (378, 679855), (385, 667494), (423, 607530), (462, 556245), (470, 546777), (495, 519162), (517, 497070), (526, 488565), (594, 432635), (630, 407913), (658, 390555), (693, 370830), (705, 364518), (770, 333747), (789, 325710), (846, 303765), (945, 271942), (987, 260370), (990, 259581), (1034, 248535), (1155, 222498), (1269, 202510), (1315, 195426), (1386, 185415), (1410, 182259), (1485, 173054), (1551, 165690), (1578, 162855), (1645, 156222), (1841, 139590), (1890, 135971), (1974, 130185), (2079, 123610), (2115, 121506), (2310, 111249), (2367, 108570), (2538, 101255), (2585, 99414), (2630, 97713), (2893, 88830), (2961, 86790), (2970, 86527), (3102, 82845), (3290, 78111), (3465, 74166), (3619, 71010), (3682, 69795), (3945, 65142), (4158, 61805), (4230, 60753), (4653, 55230), (4734, 54285), (4935, 52074), (5170, 49707), (5523, 46530), (5786, 44415), (5922, 43395), (6345, 40502), (6930, 37083), (7101, 36190), (7238, 35505), (7755, 33138), (7890, 32571), (8679, 29610), (8883, 28930), (9205, 27918), (9306, 27615), (9870, 26037), (10395, 24722), (10857, 23670), (11046, 23265), (11835, 21714), (12361, 20790), (12690, 20251), (13959, 18410), (14202, 18095), (14465, 17766), (14805, 17358), (15510, 16569)]