129549040

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4079}}^1$

素因数の和:4489

約数の個数: 40

約数和(自身を含む): 302034240

約数和(自身を除く): 172485200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 3176, 3970, 4079, 6352, 7940, 8158, 15880, 16316, 20395, 31760, 32632, 40790, 65264, 81580, 163160, 326320, 1619363, 3238726, 6477452, 8096815, 12954904, 16193630, 25909808, 32387260, 64774520, 129549040]

約数ペア:

[(1, 129549040), (2, 64774520), (4, 32387260), (5, 25909808), (8, 16193630), (10, 12954904), (16, 8096815), (20, 6477452), (40, 3238726), (80, 1619363), (397, 326320), (794, 163160), (1588, 81580), (1985, 65264), (3176, 40790), (3970, 32632), (4079, 31760), (6352, 20395), (7940, 16316), (8158, 15880)]