65040760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39659}}^1$

素因数の和:39711

約数の個数: 32

約数和(自身を含む): 149914800

約数和(自身を除く): 84874040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39659, 79318, 158636, 198295, 317272, 396590, 793180, 1586360, 1626019, 3252038, 6504076, 8130095, 13008152, 16260190, 32520380, 65040760]

約数ペア:

[(1, 65040760), (2, 32520380), (4, 16260190), (5, 13008152), (8, 8130095), (10, 6504076), (20, 3252038), (40, 1626019), (41, 1586360), (82, 793180), (164, 396590), (205, 317272), (328, 198295), (410, 158636), (820, 79318), (1640, 39659)]