18357580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1021}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 41207040

約数和(自身を除く): 22849460

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1021, 1798, 2042, 3596, 4084, 4495, 5105, 8990, 10210, 17980, 20420, 29609, 31651, 59218, 63302, 118436, 126604, 148045, 158255, 296090, 316510, 592180, 633020, 917879, 1835758, 3671516, 4589395, 9178790, 18357580]

約数ペア:

[(1, 18357580), (2, 9178790), (4, 4589395), (5, 3671516), (10, 1835758), (20, 917879), (29, 633020), (31, 592180), (58, 316510), (62, 296090), (116, 158255), (124, 148045), (145, 126604), (155, 118436), (290, 63302), (310, 59218), (580, 31651), (620, 29609), (899, 20420), (1021, 17980), (1798, 10210), (2042, 8990), (3596, 5105), (4084, 4495)]