87631120

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6977}}^1$

素因数の和:7147

約数の個数: 40

約数和(自身を含む): 205069464

約数和(自身を除く): 117438344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 6977, 12560, 13954, 27908, 34885, 55816, 69770, 111632, 139540, 279080, 558160, 1095389, 2190778, 4381556, 5476945, 8763112, 10953890, 17526224, 21907780, 43815560, 87631120]

約数ペア:

[(1, 87631120), (2, 43815560), (4, 21907780), (5, 17526224), (8, 10953890), (10, 8763112), (16, 5476945), (20, 4381556), (40, 2190778), (80, 1095389), (157, 558160), (314, 279080), (628, 139540), (785, 111632), (1256, 69770), (1570, 55816), (2512, 34885), (3140, 27908), (6280, 13954), (6977, 12560)]