81432840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{678607}}^1$

素因数の和:678621

約数の個数: 32

約数和(自身を含む): 244298880

約数和(自身を除く): 162866040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 678607, 1357214, 2035821, 2714428, 3393035, 4071642, 5428856, 6786070, 8143284, 10179105, 13572140, 16286568, 20358210, 27144280, 40716420, 81432840]

約数ペア:

[(1, 81432840), (2, 40716420), (3, 27144280), (4, 20358210), (5, 16286568), (6, 13572140), (8, 10179105), (10, 8143284), (12, 6786070), (15, 5428856), (20, 4071642), (24, 3393035), (30, 2714428), (40, 2035821), (60, 1357214), (120, 678607)]