20163275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 30533760

約数和(自身を除く): 10370485

約数列:

[1, 5, 11, 17, 19, 25, 55, 85, 95, 187, 209, 227, 275, 323, 425, 475, 935, 1045, 1135, 1615, 2497, 3553, 3859, 4313, 4675, 5225, 5675, 8075, 12485, 17765, 19295, 21565, 42449, 47443, 62425, 73321, 88825, 96475, 107825, 212245, 237215, 366605, 806531, 1061225, 1186075, 1833025, 4032655, 20163275]

約数ペア:

[(1, 20163275), (5, 4032655), (11, 1833025), (17, 1186075), (19, 1061225), (25, 806531), (55, 366605), (85, 237215), (95, 212245), (187, 107825), (209, 96475), (227, 88825), (275, 73321), (323, 62425), (425, 47443), (475, 42449), (935, 21565), (1045, 19295), (1135, 17765), (1615, 12485), (2497, 8075), (3553, 5675), (3859, 5225), (4313, 4675)]