1789240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1091}}^1$

素因数の和:1143

約数の個数: 32

約数和(自身を含む): 4127760

約数和(自身を除く): 2338520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1091, 1640, 2182, 4364, 5455, 8728, 10910, 21820, 43640, 44731, 89462, 178924, 223655, 357848, 447310, 894620, 1789240]

約数ペア:

[(1, 1789240), (2, 894620), (4, 447310), (5, 357848), (8, 223655), (10, 178924), (20, 89462), (40, 44731), (41, 43640), (82, 21820), (164, 10910), (205, 8728), (328, 5455), (410, 4364), (820, 2182), (1091, 1640)]