51051320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 119560320

約数和(自身を除く): 68509000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 67, 86, 134, 172, 215, 268, 335, 344, 430, 443, 536, 670, 860, 886, 1340, 1720, 1772, 2215, 2680, 2881, 3544, 4430, 5762, 8860, 11524, 14405, 17720, 19049, 23048, 28810, 29681, 38098, 57620, 59362, 76196, 95245, 115240, 118724, 148405, 152392, 190490, 237448, 296810, 380980, 593620, 761960, 1187240, 1276283, 2552566, 5105132, 6381415, 10210264, 12762830, 25525660, 51051320]

約数ペア:

[(1, 51051320), (2, 25525660), (4, 12762830), (5, 10210264), (8, 6381415), (10, 5105132), (20, 2552566), (40, 1276283), (43, 1187240), (67, 761960), (86, 593620), (134, 380980), (172, 296810), (215, 237448), (268, 190490), (335, 152392), (344, 148405), (430, 118724), (443, 115240), (536, 95245), (670, 76196), (860, 59362), (886, 57620), (1340, 38098), (1720, 29681), (1772, 28810), (2215, 23048), (2680, 19049), (2881, 17720), (3544, 14405), (4430, 11524), (5762, 8860)]