12479980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20129}}^1$

素因数の和:20169

約数の個数: 24

約数和(自身を含む): 27054720

約数和(自身を除く): 14574740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20129, 40258, 80516, 100645, 201290, 402580, 623999, 1247998, 2495996, 3119995, 6239990, 12479980]

約数ペア:

[(1, 12479980), (2, 6239990), (4, 3119995), (5, 2495996), (10, 1247998), (20, 623999), (31, 402580), (62, 201290), (124, 100645), (155, 80516), (310, 40258), (620, 20129)]