90980080

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6977}}^1$

素因数の和:7153

約数の個数: 40

約数和(自身を含む): 212856912

約数和(自身を除く): 121876832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 6977, 13040, 13954, 27908, 34885, 55816, 69770, 111632, 139540, 279080, 558160, 1137251, 2274502, 4549004, 5686255, 9098008, 11372510, 18196016, 22745020, 45490040, 90980080]

約数ペア:

[(1, 90980080), (2, 45490040), (4, 22745020), (5, 18196016), (8, 11372510), (10, 9098008), (16, 5686255), (20, 4549004), (40, 2274502), (80, 1137251), (163, 558160), (326, 279080), (652, 139540), (815, 111632), (1304, 69770), (1630, 55816), (2608, 34885), (3260, 27908), (6520, 13954), (6977, 13040)]