90904190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{18899}}^1$

素因数の和:18956

約数の個数: 32

約数和(自身を含む): 180986400

約数和(自身を除く): 90082210

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 18899, 37798, 94495, 188990, 245687, 491374, 699263, 1228435, 1398526, 2456870, 3496315, 6992630, 9090419, 18180838, 45452095, 90904190]

約数ペア:

[(1, 90904190), (2, 45452095), (5, 18180838), (10, 9090419), (13, 6992630), (26, 3496315), (37, 2456870), (65, 1398526), (74, 1228435), (130, 699263), (185, 491374), (370, 245687), (481, 188990), (962, 94495), (2405, 37798), (4810, 18899)]