133668131320

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{6805913}}^1$

素因数の和:6806415

約数の個数: 32

約数和(自身を含む): 301365871920

約数和(自身を除く): 167697740600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 19640, 6805913, 13611826, 27223652, 34029565, 54447304, 68059130, 136118260, 272236520, 3341703283, 6683406566, 13366813132, 16708516415, 26733626264, 33417032830, 66834065660, 133668131320]

約数ペア:

[(1, 133668131320), (2, 66834065660), (4, 33417032830), (5, 26733626264), (8, 16708516415), (10, 13366813132), (20, 6683406566), (40, 3341703283), (491, 272236520), (982, 136118260), (1964, 68059130), (2455, 54447304), (3928, 34029565), (4910, 27223652), (9820, 13611826), (19640, 6805913)]