31131760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2081}}^1$

素因数の和:2122

約数の個数: 80

約数和(自身を含む): 83646432

約数和(自身を除く): 52514672

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 2081, 2992, 3740, 4162, 7480, 8324, 10405, 14960, 16648, 20810, 22891, 33296, 35377, 41620, 45782, 70754, 83240, 91564, 114455, 141508, 166480, 176885, 183128, 228910, 283016, 353770, 366256, 389147, 457820, 566032, 707540, 778294, 915640, 1415080, 1556588, 1831280, 1945735, 2830160, 3113176, 3891470, 6226352, 7782940, 15565880, 31131760]

約数ペア:

[(1, 31131760), (2, 15565880), (4, 7782940), (5, 6226352), (8, 3891470), (10, 3113176), (11, 2830160), (16, 1945735), (17, 1831280), (20, 1556588), (22, 1415080), (34, 915640), (40, 778294), (44, 707540), (55, 566032), (68, 457820), (80, 389147), (85, 366256), (88, 353770), (110, 283016), (136, 228910), (170, 183128), (176, 176885), (187, 166480), (220, 141508), (272, 114455), (340, 91564), (374, 83240), (440, 70754), (680, 45782), (748, 41620), (880, 35377), (935, 33296), (1360, 22891), (1496, 20810), (1870, 16648), (2081, 14960), (2992, 10405), (3740, 8324), (4162, 7480)]