2018769920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{394291}}^1$

素因数の和:394316

約数の個数: 44

約数和(自身を含む): 4842694344

約数和(自身を除く): 2823924424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 394291, 788582, 1577164, 1971455, 3154328, 3942910, 6308656, 7885820, 12617312, 15771640, 25234624, 31543280, 50469248, 63086560, 100938496, 126173120, 201876992, 252346240, 403753984, 504692480, 1009384960, 2018769920]

約数ペア:

[(1, 2018769920), (2, 1009384960), (4, 504692480), (5, 403753984), (8, 252346240), (10, 201876992), (16, 126173120), (20, 100938496), (32, 63086560), (40, 50469248), (64, 31543280), (80, 25234624), (128, 15771640), (160, 12617312), (256, 7885820), (320, 6308656), (512, 3942910), (640, 3154328), (1024, 1971455), (1280, 1577164), (2560, 788582), (5120, 394291)]