290891025

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 545259000

約数和(自身を除く): 254367975

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 109, 145, 225, 261, 327, 409, 435, 545, 725, 981, 1227, 1305, 1635, 2045, 2175, 2725, 3161, 3681, 4905, 6135, 6525, 8175, 9483, 10225, 11861, 15805, 18405, 24525, 28449, 30675, 35583, 44581, 47415, 59305, 79025, 92025, 106749, 133743, 142245, 177915, 222905, 237075, 296525, 401229, 533745, 668715, 711225, 889575, 1114525, 1292849, 2006145, 2668725, 3343575, 3878547, 6464245, 10030725, 11635641, 19392735, 32321225, 58178205, 96963675, 290891025]

約数ペア:

[(1, 290891025), (3, 96963675), (5, 58178205), (9, 32321225), (15, 19392735), (25, 11635641), (29, 10030725), (45, 6464245), (75, 3878547), (87, 3343575), (109, 2668725), (145, 2006145), (225, 1292849), (261, 1114525), (327, 889575), (409, 711225), (435, 668715), (545, 533745), (725, 401229), (981, 296525), (1227, 237075), (1305, 222905), (1635, 177915), (2045, 142245), (2175, 133743), (2725, 106749), (3161, 92025), (3681, 79025), (4905, 59305), (6135, 47415), (6525, 44581), (8175, 35583), (9483, 30675), (10225, 28449), (11861, 24525), (15805, 18405)]