12788120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10313}}^1$

素因数の和:10355

約数の個数: 32

約数和(自身を含む): 29704320

約数和(自身を除く): 16916200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 10313, 20626, 41252, 51565, 82504, 103130, 206260, 319703, 412520, 639406, 1278812, 1598515, 2557624, 3197030, 6394060, 12788120]

約数ペア:

[(1, 12788120), (2, 6394060), (4, 3197030), (5, 2557624), (8, 1598515), (10, 1278812), (20, 639406), (31, 412520), (40, 319703), (62, 206260), (124, 103130), (155, 82504), (248, 51565), (310, 41252), (620, 20626), (1240, 10313)]