39808540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1129}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 87706080

約数和(自身を除く): 47897540

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1129, 1763, 2258, 3526, 4516, 5645, 7052, 8815, 11290, 17630, 22580, 35260, 46289, 48547, 92578, 97094, 185156, 194188, 231445, 242735, 462890, 485470, 925780, 970940, 1990427, 3980854, 7961708, 9952135, 19904270, 39808540]

約数ペア:

[(1, 39808540), (2, 19904270), (4, 9952135), (5, 7961708), (10, 3980854), (20, 1990427), (41, 970940), (43, 925780), (82, 485470), (86, 462890), (164, 242735), (172, 231445), (205, 194188), (215, 185156), (410, 97094), (430, 92578), (820, 48547), (860, 46289), (1129, 35260), (1763, 22580), (2258, 17630), (3526, 11290), (4516, 8815), (5645, 7052)]