1556074640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{474413}}^1$

素因数の和:474467

約数の個数: 40

約数和(自身を含む): 3706122168

約数和(自身を除く): 2150047528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 474413, 948826, 1897652, 2372065, 3795304, 4744130, 7590608, 9488260, 18976520, 19450933, 37953040, 38901866, 77803732, 97254665, 155607464, 194509330, 311214928, 389018660, 778037320, 1556074640]

約数ペア:

[(1, 1556074640), (2, 778037320), (4, 389018660), (5, 311214928), (8, 194509330), (10, 155607464), (16, 97254665), (20, 77803732), (40, 38901866), (41, 37953040), (80, 19450933), (82, 18976520), (164, 9488260), (205, 7590608), (328, 4744130), (410, 3795304), (656, 2372065), (820, 1897652), (1640, 948826), (3280, 474413)]