17788100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 42788928

約数和(自身を除く): 25000828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 103, 110, 157, 206, 220, 275, 314, 412, 515, 550, 628, 785, 1030, 1100, 1133, 1570, 1727, 2060, 2266, 2575, 3140, 3454, 3925, 4532, 5150, 5665, 6908, 7850, 8635, 10300, 11330, 15700, 16171, 17270, 22660, 28325, 32342, 34540, 43175, 56650, 64684, 80855, 86350, 113300, 161710, 172700, 177881, 323420, 355762, 404275, 711524, 808550, 889405, 1617100, 1778810, 3557620, 4447025, 8894050, 17788100]

約数ペア:

[(1, 17788100), (2, 8894050), (4, 4447025), (5, 3557620), (10, 1778810), (11, 1617100), (20, 889405), (22, 808550), (25, 711524), (44, 404275), (50, 355762), (55, 323420), (100, 177881), (103, 172700), (110, 161710), (157, 113300), (206, 86350), (220, 80855), (275, 64684), (314, 56650), (412, 43175), (515, 34540), (550, 32342), (628, 28325), (785, 22660), (1030, 17270), (1100, 16171), (1133, 15700), (1570, 11330), (1727, 10300), (2060, 8635), (2266, 7850), (2575, 6908), (3140, 5665), (3454, 5150), (3925, 4532)]