68880680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4231}}^1$

素因数の和:4290

約数の個数: 64

約数和(自身を含む): 173681280

約数和(自身を除く): 104800600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 2035, 3256, 4070, 4231, 8140, 8462, 16280, 16924, 21155, 33848, 42310, 46541, 84620, 93082, 156547, 169240, 186164, 232705, 313094, 372328, 465410, 626188, 782735, 930820, 1252376, 1565470, 1722017, 1861640, 3130940, 3444034, 6261880, 6888068, 8610085, 13776136, 17220170, 34440340, 68880680]

約数ペア:

[(1, 68880680), (2, 34440340), (4, 17220170), (5, 13776136), (8, 8610085), (10, 6888068), (11, 6261880), (20, 3444034), (22, 3130940), (37, 1861640), (40, 1722017), (44, 1565470), (55, 1252376), (74, 930820), (88, 782735), (110, 626188), (148, 465410), (185, 372328), (220, 313094), (296, 232705), (370, 186164), (407, 169240), (440, 156547), (740, 93082), (814, 84620), (1480, 46541), (1628, 42310), (2035, 33848), (3256, 21155), (4070, 16924), (4231, 16280), (8140, 8462)]