20125960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1741}}^1$

素因数の和:1786

約数の個数: 48

約数和(自身を含む): 48131460

約数和(自身を除く): 28005500

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 1741, 2312, 2890, 3482, 5780, 6964, 8705, 11560, 13928, 17410, 29597, 34820, 59194, 69640, 118388, 147985, 236776, 295970, 503149, 591940, 1006298, 1183880, 2012596, 2515745, 4025192, 5031490, 10062980, 20125960]

約数ペア:

[(1, 20125960), (2, 10062980), (4, 5031490), (5, 4025192), (8, 2515745), (10, 2012596), (17, 1183880), (20, 1006298), (34, 591940), (40, 503149), (68, 295970), (85, 236776), (136, 147985), (170, 118388), (289, 69640), (340, 59194), (578, 34820), (680, 29597), (1156, 17410), (1445, 13928), (1741, 11560), (2312, 8705), (2890, 6964), (3482, 5780)]