18032540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 39070080

約数和(自身を除く): 21037540

約数列:

[1, 2, 4, 5, 10, 20, 79, 101, 113, 158, 202, 226, 316, 395, 404, 452, 505, 565, 790, 1010, 1130, 1580, 2020, 2260, 7979, 8927, 11413, 15958, 17854, 22826, 31916, 35708, 39895, 44635, 45652, 57065, 79790, 89270, 114130, 159580, 178540, 228260, 901627, 1803254, 3606508, 4508135, 9016270, 18032540]

約数ペア:

[(1, 18032540), (2, 9016270), (4, 4508135), (5, 3606508), (10, 1803254), (20, 901627), (79, 228260), (101, 178540), (113, 159580), (158, 114130), (202, 89270), (226, 79790), (316, 57065), (395, 45652), (404, 44635), (452, 39895), (505, 35708), (565, 31916), (790, 22826), (1010, 17854), (1130, 15958), (1580, 11413), (2020, 8927), (2260, 7979)]