28440800

素因数分解:

$2^5\times 5^2\times {\mathrm{73}}^1\times {\mathrm{487}}^1$

素因数の和:580

約数の個数: 72

約数和(自身を含む): 70526736

約数和(自身を除く): 42085936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 73, 80, 100, 146, 160, 200, 292, 365, 400, 487, 584, 730, 800, 974, 1168, 1460, 1825, 1948, 2336, 2435, 2920, 3650, 3896, 4870, 5840, 7300, 7792, 9740, 11680, 12175, 14600, 15584, 19480, 24350, 29200, 35551, 38960, 48700, 58400, 71102, 77920, 97400, 142204, 177755, 194800, 284408, 355510, 389600, 568816, 711020, 888775, 1137632, 1422040, 1777550, 2844080, 3555100, 5688160, 7110200, 14220400, 28440800]

約数ペア:

[(1, 28440800), (2, 14220400), (4, 7110200), (5, 5688160), (8, 3555100), (10, 2844080), (16, 1777550), (20, 1422040), (25, 1137632), (32, 888775), (40, 711020), (50, 568816), (73, 389600), (80, 355510), (100, 284408), (146, 194800), (160, 177755), (200, 142204), (292, 97400), (365, 77920), (400, 71102), (487, 58400), (584, 48700), (730, 38960), (800, 35551), (974, 29200), (1168, 24350), (1460, 19480), (1825, 15584), (1948, 14600), (2336, 12175), (2435, 11680), (2920, 9740), (3650, 7792), (3896, 7300), (4870, 5840)]