81613360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53693}}^1$

素因数の和:53725

約数の個数: 40

約数和(自身を含む): 199741680

約数和(自身を除く): 118128320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 53693, 107386, 214772, 268465, 429544, 536930, 859088, 1020167, 1073860, 2040334, 2147720, 4080668, 4295440, 5100835, 8161336, 10201670, 16322672, 20403340, 40806680, 81613360]

約数ペア:

[(1, 81613360), (2, 40806680), (4, 20403340), (5, 16322672), (8, 10201670), (10, 8161336), (16, 5100835), (19, 4295440), (20, 4080668), (38, 2147720), (40, 2040334), (76, 1073860), (80, 1020167), (95, 859088), (152, 536930), (190, 429544), (304, 268465), (380, 214772), (760, 107386), (1520, 53693)]