20176491884

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{409}}^1\times {\mathrm{138571}}^1$

素因数の和:139073

約数の個数: 24

約数和(自身を含む): 35793147600

約数和(自身を除く): 15616655716

約数列:

[1, 2, 4, 89, 178, 356, 409, 818, 1636, 36401, 72802, 138571, 145604, 277142, 554284, 12332819, 24665638, 49331276, 56675539, 113351078, 226702156, 5044122971, 10088245942, 20176491884]

約数ペア:

[(1, 20176491884), (2, 10088245942), (4, 5044122971), (89, 226702156), (178, 113351078), (356, 56675539), (409, 49331276), (818, 24665638), (1636, 12332819), (36401, 554284), (72802, 277142), (138571, 145604)]