90080080

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{6221}}^1$

素因数の和:6415

約数の個数: 40

約数和(自身を含む): 210627144

約数和(自身を除く): 120547064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 6221, 7240, 12442, 14480, 24884, 31105, 49768, 62210, 99536, 124420, 248840, 497680, 1126001, 2252002, 4504004, 5630005, 9008008, 11260010, 18016016, 22520020, 45040040, 90080080]

約数ペア:

[(1, 90080080), (2, 45040040), (4, 22520020), (5, 18016016), (8, 11260010), (10, 9008008), (16, 5630005), (20, 4504004), (40, 2252002), (80, 1126001), (181, 497680), (362, 248840), (724, 124420), (905, 99536), (1448, 62210), (1810, 49768), (2896, 31105), (3620, 24884), (6221, 14480), (7240, 12442)]