20924020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3499}}^1$

素因数の和:3544

約数の個数: 48

約数和(自身を含む): 49392000

約数和(自身を除く): 28467980

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3499, 5980, 6998, 13996, 17495, 34990, 45487, 69980, 80477, 90974, 160954, 181948, 227435, 321908, 402385, 454870, 804770, 909740, 1046201, 1609540, 2092402, 4184804, 5231005, 10462010, 20924020]

約数ペア:

[(1, 20924020), (2, 10462010), (4, 5231005), (5, 4184804), (10, 2092402), (13, 1609540), (20, 1046201), (23, 909740), (26, 804770), (46, 454870), (52, 402385), (65, 321908), (92, 227435), (115, 181948), (130, 160954), (230, 90974), (260, 80477), (299, 69980), (460, 45487), (598, 34990), (1196, 17495), (1495, 13996), (2990, 6998), (3499, 5980)]