2780452040

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{674867}}^1$

素因数の和:674981

約数の個数: 32

約数和(自身を含む): 6316764480

約数和(自身を除く): 3536312440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 674867, 1349734, 2699468, 3374335, 5398936, 6748670, 13497340, 26994680, 69511301, 139022602, 278045204, 347556505, 556090408, 695113010, 1390226020, 2780452040]

約数ペア:

[(1, 2780452040), (2, 1390226020), (4, 695113010), (5, 556090408), (8, 347556505), (10, 278045204), (20, 139022602), (40, 69511301), (103, 26994680), (206, 13497340), (412, 6748670), (515, 5398936), (824, 3374335), (1030, 2699468), (2060, 1349734), (4120, 674867)]