56180020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1249}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 127890000

約数和(自身を除く): 71709980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 173, 260, 346, 692, 865, 1249, 1730, 2249, 2498, 3460, 4498, 4996, 6245, 8996, 11245, 12490, 16237, 22490, 24980, 32474, 44980, 64948, 81185, 162370, 216077, 324740, 432154, 864308, 1080385, 2160770, 2809001, 4321540, 5618002, 11236004, 14045005, 28090010, 56180020]

約数ペア:

[(1, 56180020), (2, 28090010), (4, 14045005), (5, 11236004), (10, 5618002), (13, 4321540), (20, 2809001), (26, 2160770), (52, 1080385), (65, 864308), (130, 432154), (173, 324740), (260, 216077), (346, 162370), (692, 81185), (865, 64948), (1249, 44980), (1730, 32474), (2249, 24980), (2498, 22490), (3460, 16237), (4498, 12490), (4996, 11245), (6245, 8996)]