20178032920

素因数分解:

$2^3\times 5^1\times {\mathrm{683}}^1\times {\mathrm{738581}}^1$

素因数の和:739275

約数の個数: 32

約数和(自身を含む): 45467107920

約数和(自身を除く): 25289075000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 683, 1366, 2732, 3415, 5464, 6830, 13660, 27320, 738581, 1477162, 2954324, 3692905, 5908648, 7385810, 14771620, 29543240, 504450823, 1008901646, 2017803292, 2522254115, 4035606584, 5044508230, 10089016460, 20178032920]

約数ペア:

[(1, 20178032920), (2, 10089016460), (4, 5044508230), (5, 4035606584), (8, 2522254115), (10, 2017803292), (20, 1008901646), (40, 504450823), (683, 29543240), (1366, 14771620), (2732, 7385810), (3415, 5908648), (5464, 3692905), (6830, 2954324), (13660, 1477162), (27320, 738581)]