39927380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64399}}^1$

素因数の和:64439

約数の個数: 24

約数和(自身を含む): 86553600

約数和(自身を除く): 46626220

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 64399, 128798, 257596, 321995, 643990, 1287980, 1996369, 3992738, 7985476, 9981845, 19963690, 39927380]

約数ペア:

[(1, 39927380), (2, 19963690), (4, 9981845), (5, 7985476), (10, 3992738), (20, 1996369), (31, 1287980), (62, 643990), (124, 321995), (155, 257596), (310, 128798), (620, 64399)]