18995870

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2113}}^1$

素因数の和:2180

約数の個数: 32

約数和(自身を含む): 36529920

約数和(自身を除く): 17534050

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 2113, 4226, 4495, 8990, 10565, 21130, 61277, 65503, 122554, 131006, 306385, 327515, 612770, 655030, 1899587, 3799174, 9497935, 18995870]

約数ペア:

[(1, 18995870), (2, 9497935), (5, 3799174), (10, 1899587), (29, 655030), (31, 612770), (58, 327515), (62, 306385), (145, 131006), (155, 122554), (290, 65503), (310, 61277), (899, 21130), (1798, 10565), (2113, 8990), (4226, 4495)]