31508025

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 54246528

約数和(自身を除く): 22738503

約数列:

[1, 3, 5, 15, 25, 61, 71, 75, 97, 183, 213, 291, 305, 355, 485, 915, 1065, 1455, 1525, 1775, 2425, 4331, 4575, 5325, 5917, 6887, 7275, 12993, 17751, 20661, 21655, 29585, 34435, 64965, 88755, 103305, 108275, 147925, 172175, 324825, 420107, 443775, 516525, 1260321, 2100535, 6301605, 10502675, 31508025]

約数ペア:

[(1, 31508025), (3, 10502675), (5, 6301605), (15, 2100535), (25, 1260321), (61, 516525), (71, 443775), (75, 420107), (97, 324825), (183, 172175), (213, 147925), (291, 108275), (305, 103305), (355, 88755), (485, 64965), (915, 34435), (1065, 29585), (1455, 21655), (1525, 20661), (1775, 17751), (2425, 12993), (4331, 7275), (4575, 6887), (5325, 5917)]