20638170

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 192

約数和(自身を含む): 67931136

約数和(自身を除く): 47292966

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 30, 34, 35, 41, 42, 45, 47, 51, 63, 70, 82, 85, 90, 94, 102, 105, 119, 123, 126, 141, 153, 170, 205, 210, 235, 238, 246, 255, 282, 287, 306, 315, 329, 357, 369, 410, 423, 470, 510, 574, 595, 615, 630, 658, 697, 705, 714, 738, 765, 799, 846, 861, 987, 1071, 1190, 1230, 1394, 1410, 1435, 1530, 1598, 1645, 1722, 1785, 1845, 1927, 1974, 2091, 2115, 2142, 2397, 2583, 2870, 2961, 3290, 3485, 3570, 3690, 3854, 3995, 4182, 4230, 4305, 4794, 4879, 4935, 5166, 5355, 5593, 5781, 5922, 6273, 6970, 7191, 7990, 8610, 9635, 9758, 9870, 10455, 10710, 11186, 11562, 11985, 12546, 12915, 13489, 14382, 14637, 14805, 16779, 17343, 19270, 20910, 23970, 24395, 25830, 26978, 27965, 28905, 29274, 29610, 31365, 32759, 33558, 34686, 35955, 40467, 43911, 48790, 50337, 55930, 57810, 62730, 65518, 67445, 71910, 73185, 80934, 83895, 86715, 87822, 98277, 100674, 121401, 134890, 146370, 163795, 167790, 173430, 196554, 202335, 219555, 229313, 242802, 251685, 294831, 327590, 404670, 439110, 458626, 491385, 503370, 589662, 607005, 687939, 982770, 1146565, 1214010, 1375878, 1474155, 2063817, 2293130, 2948310, 3439695, 4127634, 6879390, 10319085, 20638170]

約数ペア:

[(1, 20638170), (2, 10319085), (3, 6879390), (5, 4127634), (6, 3439695), (7, 2948310), (9, 2293130), (10, 2063817), (14, 1474155), (15, 1375878), (17, 1214010), (18, 1146565), (21, 982770), (30, 687939), (34, 607005), (35, 589662), (41, 503370), (42, 491385), (45, 458626), (47, 439110), (51, 404670), (63, 327590), (70, 294831), (82, 251685), (85, 242802), (90, 229313), (94, 219555), (102, 202335), (105, 196554), (119, 173430), (123, 167790), (126, 163795), (141, 146370), (153, 134890), (170, 121401), (205, 100674), (210, 98277), (235, 87822), (238, 86715), (246, 83895), (255, 80934), (282, 73185), (287, 71910), (306, 67445), (315, 65518), (329, 62730), (357, 57810), (369, 55930), (410, 50337), (423, 48790), (470, 43911), (510, 40467), (574, 35955), (595, 34686), (615, 33558), (630, 32759), (658, 31365), (697, 29610), (705, 29274), (714, 28905), (738, 27965), (765, 26978), (799, 25830), (846, 24395), (861, 23970), (987, 20910), (1071, 19270), (1190, 17343), (1230, 16779), (1394, 14805), (1410, 14637), (1435, 14382), (1530, 13489), (1598, 12915), (1645, 12546), (1722, 11985), (1785, 11562), (1845, 11186), (1927, 10710), (1974, 10455), (2091, 9870), (2115, 9758), (2142, 9635), (2397, 8610), (2583, 7990), (2870, 7191), (2961, 6970), (3290, 6273), (3485, 5922), (3570, 5781), (3690, 5593), (3854, 5355), (3995, 5166), (4182, 4935), (4230, 4879), (4305, 4794)]