20217223850

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{2767}}^1\times {\mathrm{5039}}^1$

素因数の和:7847

約数の個数: 48

約数和(自身を含む): 38922508800

約数和(自身を除く): 18705284950

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 2767, 5039, 5534, 10078, 13835, 25195, 27670, 50390, 69175, 80243, 125975, 138350, 146131, 160486, 251950, 292262, 401215, 730655, 802430, 1461310, 2006075, 3653275, 4012150, 7306550, 13942913, 27885826, 69714565, 139429130, 348572825, 404344477, 697145650, 808688954, 2021722385, 4043444770, 10108611925, 20217223850]

約数ペア:

[(1, 20217223850), (2, 10108611925), (5, 4043444770), (10, 2021722385), (25, 808688954), (29, 697145650), (50, 404344477), (58, 348572825), (145, 139429130), (290, 69714565), (725, 27885826), (1450, 13942913), (2767, 7306550), (5039, 4012150), (5534, 3653275), (10078, 2006075), (13835, 1461310), (25195, 802430), (27670, 730655), (50390, 401215), (69175, 292262), (80243, 251950), (125975, 160486), (138350, 146131)]