81561888

素因数分解:

$2^5\times 3^2\times {\mathrm{173}}^1\times {\mathrm{1637}}^1$

素因数の和:1826

約数の個数: 72

約数和(自身を含む): 233424828

約数和(自身を除く): 151862940

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 173, 288, 346, 519, 692, 1038, 1384, 1557, 1637, 2076, 2768, 3114, 3274, 4152, 4911, 5536, 6228, 6548, 8304, 9822, 12456, 13096, 14733, 16608, 19644, 24912, 26192, 29466, 39288, 49824, 52384, 58932, 78576, 117864, 157152, 235728, 283201, 471456, 566402, 849603, 1132804, 1699206, 2265608, 2548809, 3398412, 4531216, 5097618, 6796824, 9062432, 10195236, 13593648, 20390472, 27187296, 40780944, 81561888]

約数ペア:

[(1, 81561888), (2, 40780944), (3, 27187296), (4, 20390472), (6, 13593648), (8, 10195236), (9, 9062432), (12, 6796824), (16, 5097618), (18, 4531216), (24, 3398412), (32, 2548809), (36, 2265608), (48, 1699206), (72, 1132804), (96, 849603), (144, 566402), (173, 471456), (288, 283201), (346, 235728), (519, 157152), (692, 117864), (1038, 78576), (1384, 58932), (1557, 52384), (1637, 49824), (2076, 39288), (2768, 29466), (3114, 26192), (3274, 24912), (4152, 19644), (4911, 16608), (5536, 14733), (6228, 13096), (6548, 12456), (8304, 9822)]