66539860

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{20411}}^1$

素因数の和:20583

約数の個数: 24

約数和(自身を含む): 140597856

約数和(自身を除く): 74057996

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 20411, 40822, 81644, 102055, 204110, 408220, 3326993, 6653986, 13307972, 16634965, 33269930, 66539860]

約数ペア:

[(1, 66539860), (2, 33269930), (4, 16634965), (5, 13307972), (10, 6653986), (20, 3326993), (163, 408220), (326, 204110), (652, 102055), (815, 81644), (1630, 40822), (3260, 20411)]