16990520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 40219200

約数和(自身を除く): 23228680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 97, 116, 145, 151, 194, 232, 290, 302, 388, 485, 580, 604, 755, 776, 970, 1160, 1208, 1510, 1940, 2813, 3020, 3880, 4379, 5626, 6040, 8758, 11252, 14065, 14647, 17516, 21895, 22504, 28130, 29294, 35032, 43790, 56260, 58588, 73235, 87580, 112520, 117176, 146470, 175160, 292940, 424763, 585880, 849526, 1699052, 2123815, 3398104, 4247630, 8495260, 16990520]

約数ペア:

[(1, 16990520), (2, 8495260), (4, 4247630), (5, 3398104), (8, 2123815), (10, 1699052), (20, 849526), (29, 585880), (40, 424763), (58, 292940), (97, 175160), (116, 146470), (145, 117176), (151, 112520), (194, 87580), (232, 73235), (290, 58588), (302, 56260), (388, 43790), (485, 35032), (580, 29294), (604, 28130), (755, 22504), (776, 21895), (970, 17516), (1160, 14647), (1208, 14065), (1510, 11252), (1940, 8758), (2813, 6040), (3020, 5626), (3880, 4379)]