1638260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6301}}^1$

素因数の和:6323

約数の個数: 24

約数和(自身を含む): 3705576

約数和(自身を除く): 2067316

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 6301, 12602, 25204, 31505, 63010, 81913, 126020, 163826, 327652, 409565, 819130, 1638260]

約数ペア:

[(1, 1638260), (2, 819130), (4, 409565), (5, 327652), (10, 163826), (13, 126020), (20, 81913), (26, 63010), (52, 31505), (65, 25204), (130, 12602), (260, 6301)]