129664280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{1109}}^1$

素因数の和:1236

約数の個数: 64

約数和(自身を含む): 303696000

約数和(自身を除く): 174031720

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 79, 148, 158, 185, 296, 316, 370, 395, 632, 740, 790, 1109, 1480, 1580, 2218, 2923, 3160, 4436, 5545, 5846, 8872, 11090, 11692, 14615, 22180, 23384, 29230, 41033, 44360, 58460, 82066, 87611, 116920, 164132, 175222, 205165, 328264, 350444, 410330, 438055, 700888, 820660, 876110, 1641320, 1752220, 3241607, 3504440, 6483214, 12966428, 16208035, 25932856, 32416070, 64832140, 129664280]

約数ペア:

[(1, 129664280), (2, 64832140), (4, 32416070), (5, 25932856), (8, 16208035), (10, 12966428), (20, 6483214), (37, 3504440), (40, 3241607), (74, 1752220), (79, 1641320), (148, 876110), (158, 820660), (185, 700888), (296, 438055), (316, 410330), (370, 350444), (395, 328264), (632, 205165), (740, 175222), (790, 164132), (1109, 116920), (1480, 87611), (1580, 82066), (2218, 58460), (2923, 44360), (3160, 41033), (4436, 29230), (5545, 23384), (5846, 22180), (8872, 14615), (11090, 11692)]