1330786760

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{67759}}^1$

素因数の和:68261

約数の個数: 32

約数和(自身を含む): 3000412800

約数和(自身を除く): 1669626040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 19640, 67759, 135518, 271036, 338795, 542072, 677590, 1355180, 2710360, 33269669, 66539338, 133078676, 166348345, 266157352, 332696690, 665393380, 1330786760]

約数ペア:

[(1, 1330786760), (2, 665393380), (4, 332696690), (5, 266157352), (8, 166348345), (10, 133078676), (20, 66539338), (40, 33269669), (491, 2710360), (982, 1355180), (1964, 677590), (2455, 542072), (3928, 338795), (4910, 271036), (9820, 135518), (19640, 67759)]