16367440

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1877}}^1$

素因数の和:1999

約数の個数: 40

約数和(自身を含む): 38423880

約数和(自身を除く): 22056440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 1877, 2180, 3754, 4360, 7508, 8720, 9385, 15016, 18770, 30032, 37540, 75080, 150160, 204593, 409186, 818372, 1022965, 1636744, 2045930, 3273488, 4091860, 8183720, 16367440]

約数ペア:

[(1, 16367440), (2, 8183720), (4, 4091860), (5, 3273488), (8, 2045930), (10, 1636744), (16, 1022965), (20, 818372), (40, 409186), (80, 204593), (109, 150160), (218, 75080), (436, 37540), (545, 30032), (872, 18770), (1090, 15016), (1744, 9385), (1877, 8720), (2180, 7508), (3754, 4360)]