47199980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{76129}}^1$

素因数の和:76169

約数の個数: 24

約数和(自身を含む): 102318720

約数和(自身を除く): 55118740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 76129, 152258, 304516, 380645, 761290, 1522580, 2359999, 4719998, 9439996, 11799995, 23599990, 47199980]

約数ペア:

[(1, 47199980), (2, 23599990), (4, 11799995), (5, 9439996), (10, 4719998), (20, 2359999), (31, 1522580), (62, 761290), (124, 380645), (155, 304516), (310, 152258), (620, 76129)]