28089920

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2141}}^1$

素因数の和:2199

約数の個数: 56

約数和(自身を含む): 68552568

約数和(自身を除く): 40462648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1640, 2141, 2624, 3280, 4282, 6560, 8564, 10705, 13120, 17128, 21410, 34256, 42820, 68512, 85640, 87781, 137024, 171280, 175562, 342560, 351124, 438905, 685120, 702248, 877810, 1404496, 1755620, 2808992, 3511240, 5617984, 7022480, 14044960, 28089920]

約数ペア:

[(1, 28089920), (2, 14044960), (4, 7022480), (5, 5617984), (8, 3511240), (10, 2808992), (16, 1755620), (20, 1404496), (32, 877810), (40, 702248), (41, 685120), (64, 438905), (80, 351124), (82, 342560), (160, 175562), (164, 171280), (205, 137024), (320, 87781), (328, 85640), (410, 68512), (656, 42820), (820, 34256), (1312, 21410), (1640, 17128), (2141, 13120), (2624, 10705), (3280, 8564), (4282, 6560)]