20303020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{101}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 47381040

約数和(自身を除く): 27078020

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 101, 115, 190, 202, 230, 380, 404, 437, 460, 505, 529, 874, 1010, 1058, 1748, 1919, 2020, 2116, 2185, 2323, 2645, 3838, 4370, 4646, 5290, 7676, 8740, 9292, 9595, 10051, 10580, 11615, 19190, 20102, 23230, 38380, 40204, 44137, 46460, 50255, 53429, 88274, 100510, 106858, 176548, 201020, 213716, 220685, 267145, 441370, 534290, 882740, 1015151, 1068580, 2030302, 4060604, 5075755, 10151510, 20303020]

約数ペア:

[(1, 20303020), (2, 10151510), (4, 5075755), (5, 4060604), (10, 2030302), (19, 1068580), (20, 1015151), (23, 882740), (38, 534290), (46, 441370), (76, 267145), (92, 220685), (95, 213716), (101, 201020), (115, 176548), (190, 106858), (202, 100510), (230, 88274), (380, 53429), (404, 50255), (437, 46460), (460, 44137), (505, 40204), (529, 38380), (874, 23230), (1010, 20102), (1058, 19190), (1748, 11615), (1919, 10580), (2020, 10051), (2116, 9595), (2185, 9292), (2323, 8740), (2645, 7676), (3838, 5290), (4370, 4646)]