20442680

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17623}}^1$

素因数の和:17663

約数の個数: 32

約数和(自身を含む): 47584800

約数和(自身を除く): 27142120

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17623, 35246, 70492, 88115, 140984, 176230, 352460, 511067, 704920, 1022134, 2044268, 2555335, 4088536, 5110670, 10221340, 20442680]

約数ペア:

[(1, 20442680), (2, 10221340), (4, 5110670), (5, 4088536), (8, 2555335), (10, 2044268), (20, 1022134), (29, 704920), (40, 511067), (58, 352460), (116, 176230), (145, 140984), (232, 88115), (290, 70492), (580, 35246), (1160, 17623)]