201728020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{2801}}^1$

素因数の和:3100

約数の個数: 48

約数和(自身を含む): 458026128

約数和(自身を除く): 256298108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 277, 554, 1108, 1385, 2770, 2801, 3601, 5540, 5602, 7202, 11204, 14005, 14404, 18005, 28010, 36010, 36413, 56020, 72020, 72826, 145652, 182065, 364130, 728260, 775877, 1551754, 3103508, 3879385, 7758770, 10086401, 15517540, 20172802, 40345604, 50432005, 100864010, 201728020]

約数ペア:

[(1, 201728020), (2, 100864010), (4, 50432005), (5, 40345604), (10, 20172802), (13, 15517540), (20, 10086401), (26, 7758770), (52, 3879385), (65, 3103508), (130, 1551754), (260, 775877), (277, 728260), (554, 364130), (1108, 182065), (1385, 145652), (2770, 72826), (2801, 72020), (3601, 56020), (5540, 36413), (5602, 36010), (7202, 28010), (11204, 18005), (14005, 14404)]