1230394495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2084

約数の個数: 48

約数和(自身を含む): 1755648000

約数和(自身を除く): 525253505

約数列:

[1, 5, 11, 19, 31, 55, 95, 155, 209, 341, 361, 589, 1045, 1705, 1805, 1999, 2945, 3971, 6479, 9995, 11191, 19855, 21989, 32395, 37981, 55955, 61969, 109945, 123101, 189905, 309845, 417791, 615505, 681659, 721639, 1177411, 2088955, 3408295, 3608195, 5887055, 7938029, 12951521, 22370809, 39690145, 64757605, 111854045, 246078899, 1230394495]

約数ペア:

[(1, 1230394495), (5, 246078899), (11, 111854045), (19, 64757605), (31, 39690145), (55, 22370809), (95, 12951521), (155, 7938029), (209, 5887055), (341, 3608195), (361, 3408295), (589, 2088955), (1045, 1177411), (1705, 721639), (1805, 681659), (1999, 615505), (2945, 417791), (3971, 309845), (6479, 189905), (9995, 123101), (11191, 109945), (19855, 61969), (21989, 55955), (32395, 37981)]