72874720

素因数分解:

$2^5\times 5^1\times {\mathrm{563}}^1\times {\mathrm{809}}^1$

素因数の和:1387

約数の個数: 48

約数和(自身を含む): 172685520

約数和(自身を除く): 99810800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 563, 809, 1126, 1618, 2252, 2815, 3236, 4045, 4504, 5630, 6472, 8090, 9008, 11260, 12944, 16180, 18016, 22520, 25888, 32360, 45040, 64720, 90080, 129440, 455467, 910934, 1821868, 2277335, 3643736, 4554670, 7287472, 9109340, 14574944, 18218680, 36437360, 72874720]

約数ペア:

[(1, 72874720), (2, 36437360), (4, 18218680), (5, 14574944), (8, 9109340), (10, 7287472), (16, 4554670), (20, 3643736), (32, 2277335), (40, 1821868), (80, 910934), (160, 455467), (563, 129440), (809, 90080), (1126, 64720), (1618, 45040), (2252, 32360), (2815, 25888), (3236, 22520), (4045, 18016), (4504, 16180), (5630, 12944), (6472, 11260), (8090, 9008)]