20210620325

素因数分解:

$5^2\times 7^1\times {\mathrm{379}}^1\times {\mathrm{461}}^1\times {\mathrm{661}}^1$

素因数の和:1518

約数の個数: 48

約数和(自身を含む): 28822738560

約数和(自身を除く): 8612118235

約数列:

[1, 5, 7, 25, 35, 175, 379, 461, 661, 1895, 2305, 2653, 3227, 3305, 4627, 9475, 11525, 13265, 16135, 16525, 23135, 66325, 80675, 115675, 174719, 250519, 304721, 873595, 1223033, 1252595, 1523605, 1753633, 2133047, 4367975, 6115165, 6262975, 7618025, 8768165, 10665235, 30575825, 43840825, 53326175, 115489259, 577446295, 808424813, 2887231475, 4042124065, 20210620325]

約数ペア:

[(1, 20210620325), (5, 4042124065), (7, 2887231475), (25, 808424813), (35, 577446295), (175, 115489259), (379, 53326175), (461, 43840825), (661, 30575825), (1895, 10665235), (2305, 8768165), (2653, 7618025), (3227, 6262975), (3305, 6115165), (4627, 4367975), (9475, 2133047), (11525, 1753633), (13265, 1523605), (16135, 1252595), (16525, 1223033), (23135, 873595), (66325, 304721), (80675, 250519), (115675, 174719)]