18870010

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2099}}^1$

素因数の和:2166

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 17417990

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 2099, 4198, 4495, 8990, 10495, 20990, 60871, 65069, 121742, 130138, 304355, 325345, 608710, 650690, 1887001, 3774002, 9435005, 18870010]

約数ペア:

[(1, 18870010), (2, 9435005), (5, 3774002), (10, 1887001), (29, 650690), (31, 608710), (58, 325345), (62, 304355), (145, 130138), (155, 121742), (290, 65069), (310, 60871), (899, 20990), (1798, 10495), (2099, 8990), (4198, 4495)]