20383480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39199}}^1$

素因数の和:39223

約数の個数: 32

約数和(自身を含む): 49392000

約数和(自身を除く): 29008520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39199, 78398, 156796, 195995, 313592, 391990, 509587, 783980, 1019174, 1567960, 2038348, 2547935, 4076696, 5095870, 10191740, 20383480]

約数ペア:

[(1, 20383480), (2, 10191740), (4, 5095870), (5, 4076696), (8, 2547935), (10, 2038348), (13, 1567960), (20, 1019174), (26, 783980), (40, 509587), (52, 391990), (65, 313592), (104, 195995), (130, 156796), (260, 78398), (520, 39199)]