64944380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^3\times {\mathrm{109}}^1$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 142222080

約数和(自身を除く): 77277700

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 109, 124, 155, 218, 310, 436, 545, 620, 961, 1090, 1922, 2180, 3379, 3844, 4805, 6758, 9610, 13516, 16895, 19220, 29791, 33790, 59582, 67580, 104749, 119164, 148955, 209498, 297910, 418996, 523745, 595820, 1047490, 2094980, 3247219, 6494438, 12988876, 16236095, 32472190, 64944380]

約数ペア:

[(1, 64944380), (2, 32472190), (4, 16236095), (5, 12988876), (10, 6494438), (20, 3247219), (31, 2094980), (62, 1047490), (109, 595820), (124, 523745), (155, 418996), (218, 297910), (310, 209498), (436, 148955), (545, 119164), (620, 104749), (961, 67580), (1090, 59582), (1922, 33790), (2180, 29791), (3379, 19220), (3844, 16895), (4805, 13516), (6758, 9610)]