18088940

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{14827}}^1$

素因数の和:14897

約数の個数: 24

約数和(自身を含む): 38612112

約数和(自身を除く): 20523172

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 14827, 29654, 59308, 74135, 148270, 296540, 904447, 1808894, 3617788, 4522235, 9044470, 18088940]

約数ペア:

[(1, 18088940), (2, 9044470), (4, 4522235), (5, 3617788), (10, 1808894), (20, 904447), (61, 296540), (122, 148270), (244, 74135), (305, 59308), (610, 29654), (1220, 14827)]