20313200

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1181}}^1$

素因数の和:1242

約数の個数: 60

約数和(自身を含む): 49979688

約数和(自身を除く): 29666488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 344, 400, 430, 688, 860, 1075, 1181, 1720, 2150, 2362, 3440, 4300, 4724, 5905, 8600, 9448, 11810, 17200, 18896, 23620, 29525, 47240, 50783, 59050, 94480, 101566, 118100, 203132, 236200, 253915, 406264, 472400, 507830, 812528, 1015660, 1269575, 2031320, 2539150, 4062640, 5078300, 10156600, 20313200]

約数ペア:

[(1, 20313200), (2, 10156600), (4, 5078300), (5, 4062640), (8, 2539150), (10, 2031320), (16, 1269575), (20, 1015660), (25, 812528), (40, 507830), (43, 472400), (50, 406264), (80, 253915), (86, 236200), (100, 203132), (172, 118100), (200, 101566), (215, 94480), (344, 59050), (400, 50783), (430, 47240), (688, 29525), (860, 23620), (1075, 18896), (1181, 17200), (1720, 11810), (2150, 9448), (2362, 8600), (3440, 5905), (4300, 4724)]