71319260

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 153316800

約数和(自身を除く): 81997540

約数列:

[1, 2, 4, 5, 10, 20, 89, 103, 178, 206, 356, 389, 412, 445, 515, 778, 890, 1030, 1556, 1780, 1945, 2060, 3890, 7780, 9167, 18334, 34621, 36668, 40067, 45835, 69242, 80134, 91670, 138484, 160268, 173105, 183340, 200335, 346210, 400670, 692420, 801340, 3565963, 7131926, 14263852, 17829815, 35659630, 71319260]

約数ペア:

[(1, 71319260), (2, 35659630), (4, 17829815), (5, 14263852), (10, 7131926), (20, 3565963), (89, 801340), (103, 692420), (178, 400670), (206, 346210), (356, 200335), (389, 183340), (412, 173105), (445, 160268), (515, 138484), (778, 91670), (890, 80134), (1030, 69242), (1556, 45835), (1780, 40067), (1945, 36668), (2060, 34621), (3890, 18334), (7780, 9167)]