1319980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2129}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 2862720

約数和(自身を除く): 1542740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2129, 4258, 8516, 10645, 21290, 42580, 65999, 131998, 263996, 329995, 659990, 1319980]

約数ペア:

[(1, 1319980), (2, 659990), (4, 329995), (5, 263996), (10, 131998), (20, 65999), (31, 42580), (62, 21290), (124, 10645), (155, 8516), (310, 4258), (620, 2129)]