87427980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6841}}^1$

素因数の和:6927

約数の個数: 72

約数和(自身を含む): 268972704

約数和(自身を除く): 181544724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 6841, 12780, 13682, 20523, 27364, 34205, 41046, 61569, 68410, 82092, 102615, 123138, 136820, 205230, 246276, 307845, 410460, 485711, 615690, 971422, 1231380, 1457133, 1942844, 2428555, 2914266, 4371399, 4857110, 5828532, 7285665, 8742798, 9714220, 14571330, 17485596, 21856995, 29142660, 43713990, 87427980]

約数ペア:

[(1, 87427980), (2, 43713990), (3, 29142660), (4, 21856995), (5, 17485596), (6, 14571330), (9, 9714220), (10, 8742798), (12, 7285665), (15, 5828532), (18, 4857110), (20, 4371399), (30, 2914266), (36, 2428555), (45, 1942844), (60, 1457133), (71, 1231380), (90, 971422), (142, 615690), (180, 485711), (213, 410460), (284, 307845), (355, 246276), (426, 205230), (639, 136820), (710, 123138), (852, 102615), (1065, 82092), (1278, 68410), (1420, 61569), (2130, 41046), (2556, 34205), (3195, 27364), (4260, 20523), (6390, 13682), (6841, 12780)]