7448980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{691}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 19879776

約数和(自身を除く): 12430796

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 691, 770, 980, 1078, 1382, 1540, 2156, 2695, 2764, 3455, 4837, 5390, 6910, 7601, 9674, 10780, 13820, 15202, 19348, 24185, 30404, 33859, 38005, 48370, 53207, 67718, 76010, 96740, 106414, 135436, 152020, 169295, 212828, 266035, 338590, 372449, 532070, 677180, 744898, 1064140, 1489796, 1862245, 3724490, 7448980]

約数ペア:

[(1, 7448980), (2, 3724490), (4, 1862245), (5, 1489796), (7, 1064140), (10, 744898), (11, 677180), (14, 532070), (20, 372449), (22, 338590), (28, 266035), (35, 212828), (44, 169295), (49, 152020), (55, 135436), (70, 106414), (77, 96740), (98, 76010), (110, 67718), (140, 53207), (154, 48370), (196, 38005), (220, 33859), (245, 30404), (308, 24185), (385, 19348), (490, 15202), (539, 13820), (691, 10780), (770, 9674), (980, 7601), (1078, 6910), (1382, 5390), (1540, 4837), (2156, 3455), (2695, 2764)]