64918160

素因数分解:

$2^4\times 5^1\times {\mathrm{883}}^1\times {\mathrm{919}}^1$

素因数の和:1815

約数の個数: 40

約数和(自身を含む): 151270080

約数和(自身を除く): 86351920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 883, 919, 1766, 1838, 3532, 3676, 4415, 4595, 7064, 7352, 8830, 9190, 14128, 14704, 17660, 18380, 35320, 36760, 70640, 73520, 811477, 1622954, 3245908, 4057385, 6491816, 8114770, 12983632, 16229540, 32459080, 64918160]

約数ペア:

[(1, 64918160), (2, 32459080), (4, 16229540), (5, 12983632), (8, 8114770), (10, 6491816), (16, 4057385), (20, 3245908), (40, 1622954), (80, 811477), (883, 73520), (919, 70640), (1766, 36760), (1838, 35320), (3532, 18380), (3676, 17660), (4415, 14704), (4595, 14128), (7064, 9190), (7352, 8830)]