12413720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:428

約数の個数: 64

約数和(自身を含む): 30909600

約数和(自身を除く): 18495880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 317, 356, 440, 445, 634, 712, 890, 979, 1268, 1585, 1780, 1958, 2536, 3170, 3487, 3560, 3916, 4895, 6340, 6974, 7832, 9790, 12680, 13948, 17435, 19580, 27896, 28213, 34870, 39160, 56426, 69740, 112852, 139480, 141065, 225704, 282130, 310343, 564260, 620686, 1128520, 1241372, 1551715, 2482744, 3103430, 6206860, 12413720]

約数ペア:

[(1, 12413720), (2, 6206860), (4, 3103430), (5, 2482744), (8, 1551715), (10, 1241372), (11, 1128520), (20, 620686), (22, 564260), (40, 310343), (44, 282130), (55, 225704), (88, 141065), (89, 139480), (110, 112852), (178, 69740), (220, 56426), (317, 39160), (356, 34870), (440, 28213), (445, 27896), (634, 19580), (712, 17435), (890, 13948), (979, 12680), (1268, 9790), (1585, 7832), (1780, 6974), (1958, 6340), (2536, 4895), (3170, 3916), (3487, 3560)]