71211780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{395621}}^1$

素因数の和:395636

約数の個数: 36

約数和(自身を含む): 216009612

約数和(自身を除く): 144797832

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 395621, 791242, 1186863, 1582484, 1978105, 2373726, 3560589, 3956210, 4747452, 5934315, 7121178, 7912420, 11868630, 14242356, 17802945, 23737260, 35605890, 71211780]

約数ペア:

[(1, 71211780), (2, 35605890), (3, 23737260), (4, 17802945), (5, 14242356), (6, 11868630), (9, 7912420), (10, 7121178), (12, 5934315), (15, 4747452), (18, 3956210), (20, 3560589), (30, 2373726), (36, 1978105), (45, 1582484), (60, 1186863), (90, 791242), (180, 395621)]