820922336560

素因数分解:

$2^4\times 5^1\times {\mathrm{237409}}^1\times {\mathrm{43223}}^1$

素因数の和:280645

約数の個数: 40

約数和(自身を含む): 1908696630240

約数和(自身を除く): 1087774293680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 43223, 86446, 172892, 216115, 237409, 345784, 432230, 474818, 691568, 864460, 949636, 1187045, 1728920, 1899272, 2374090, 3457840, 3798544, 4748180, 9496360, 18992720, 10261529207, 20523058414, 41046116828, 51307646035, 82092233656, 102615292070, 164184467312, 205230584140, 410461168280, 820922336560]

約数ペア:

[(1, 820922336560), (2, 410461168280), (4, 205230584140), (5, 164184467312), (8, 102615292070), (10, 82092233656), (16, 51307646035), (20, 41046116828), (40, 20523058414), (80, 10261529207), (43223, 18992720), (86446, 9496360), (172892, 4748180), (216115, 3798544), (237409, 3457840), (345784, 2374090), (432230, 1899272), (474818, 1728920), (691568, 1187045), (864460, 949636)]