18478860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2351}}^1$

素因数の和:2494

約数の個数: 48

約数和(自身を含む): 52157952

約数和(自身を除く): 33679092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2351, 2620, 3930, 4702, 7053, 7860, 9404, 11755, 14106, 23510, 28212, 35265, 47020, 70530, 141060, 307981, 615962, 923943, 1231924, 1539905, 1847886, 3079810, 3695772, 4619715, 6159620, 9239430, 18478860]

約数ペア:

[(1, 18478860), (2, 9239430), (3, 6159620), (4, 4619715), (5, 3695772), (6, 3079810), (10, 1847886), (12, 1539905), (15, 1231924), (20, 923943), (30, 615962), (60, 307981), (131, 141060), (262, 70530), (393, 47020), (524, 35265), (655, 28212), (786, 23510), (1310, 14106), (1572, 11755), (1965, 9404), (2351, 7860), (2620, 7053), (3930, 4702)]