399717875

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{3557}}^1$

素因数の和:3632

約数の個数: 32

約数和(自身を含む): 532846080

約数和(自身を除く): 133128205

約数列:

[1, 5, 25, 29, 31, 125, 145, 155, 725, 775, 899, 3557, 3625, 3875, 4495, 17785, 22475, 88925, 103153, 110267, 112375, 444625, 515765, 551335, 2578825, 2756675, 3197743, 12894125, 13783375, 15988715, 79943575, 399717875]

約数ペア:

[(1, 399717875), (5, 79943575), (25, 15988715), (29, 13783375), (31, 12894125), (125, 3197743), (145, 2756675), (155, 2578825), (725, 551335), (775, 515765), (899, 444625), (3557, 112375), (3625, 110267), (3875, 103153), (4495, 88925), (17785, 22475)]