25717780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{139}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 61457760

約数和(自身を除く): 35739980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 139, 145, 220, 278, 290, 319, 556, 580, 638, 695, 841, 1276, 1390, 1529, 1595, 1682, 2780, 3058, 3190, 3364, 4031, 4205, 6116, 6380, 7645, 8062, 8410, 9251, 15290, 16124, 16820, 18502, 20155, 30580, 37004, 40310, 44341, 46255, 80620, 88682, 92510, 116899, 177364, 185020, 221705, 233798, 443410, 467596, 584495, 886820, 1168990, 1285889, 2337980, 2571778, 5143556, 6429445, 12858890, 25717780]

約数ペア:

[(1, 25717780), (2, 12858890), (4, 6429445), (5, 5143556), (10, 2571778), (11, 2337980), (20, 1285889), (22, 1168990), (29, 886820), (44, 584495), (55, 467596), (58, 443410), (110, 233798), (116, 221705), (139, 185020), (145, 177364), (220, 116899), (278, 92510), (290, 88682), (319, 80620), (556, 46255), (580, 44341), (638, 40310), (695, 37004), (841, 30580), (1276, 20155), (1390, 18502), (1529, 16820), (1595, 16124), (1682, 15290), (2780, 9251), (3058, 8410), (3190, 8062), (3364, 7645), (4031, 6380), (4205, 6116)]