39957580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{491}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 90838944

約数和(自身を除く): 50881364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 313, 491, 626, 982, 1252, 1565, 1964, 2455, 3130, 4069, 4910, 6260, 6383, 8138, 9820, 12766, 16276, 20345, 25532, 31915, 40690, 63830, 81380, 127660, 153683, 307366, 614732, 768415, 1536830, 1997879, 3073660, 3995758, 7991516, 9989395, 19978790, 39957580]

約数ペア:

[(1, 39957580), (2, 19978790), (4, 9989395), (5, 7991516), (10, 3995758), (13, 3073660), (20, 1997879), (26, 1536830), (52, 768415), (65, 614732), (130, 307366), (260, 153683), (313, 127660), (491, 81380), (626, 63830), (982, 40690), (1252, 31915), (1565, 25532), (1964, 20345), (2455, 16276), (3130, 12766), (4069, 9820), (4910, 8138), (6260, 6383)]