138717320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1009}}^1$

素因数の和:1518

約数の個数: 64

約数和(自身を含む): 357782400

約数和(自身を除く): 219065080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 491, 982, 1009, 1964, 2018, 2455, 3437, 3928, 4036, 4910, 5045, 6874, 7063, 8072, 9820, 10090, 13748, 14126, 17185, 19640, 20180, 27496, 28252, 34370, 35315, 40360, 56504, 68740, 70630, 137480, 141260, 282520, 495419, 990838, 1981676, 2477095, 3467933, 3963352, 4954190, 6935866, 9908380, 13871732, 17339665, 19816760, 27743464, 34679330, 69358660, 138717320]

約数ペア:

[(1, 138717320), (2, 69358660), (4, 34679330), (5, 27743464), (7, 19816760), (8, 17339665), (10, 13871732), (14, 9908380), (20, 6935866), (28, 4954190), (35, 3963352), (40, 3467933), (56, 2477095), (70, 1981676), (140, 990838), (280, 495419), (491, 282520), (982, 141260), (1009, 137480), (1964, 70630), (2018, 68740), (2455, 56504), (3437, 40360), (3928, 35315), (4036, 34370), (4910, 28252), (5045, 27496), (6874, 20180), (7063, 19640), (8072, 17185), (9820, 14126), (10090, 13748)]