87906260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1699}}^1$

素因数の和:1920

約数の個数: 48

約数和(自身を含む): 199920000

約数和(自身を除く): 112013740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 398, 796, 995, 1699, 1990, 2587, 3398, 3980, 5174, 6796, 8495, 10348, 12935, 16990, 22087, 25870, 33980, 44174, 51740, 88348, 110435, 220870, 338101, 441740, 676202, 1352404, 1690505, 3381010, 4395313, 6762020, 8790626, 17581252, 21976565, 43953130, 87906260]

約数ペア:

[(1, 87906260), (2, 43953130), (4, 21976565), (5, 17581252), (10, 8790626), (13, 6762020), (20, 4395313), (26, 3381010), (52, 1690505), (65, 1352404), (130, 676202), (199, 441740), (260, 338101), (398, 220870), (796, 110435), (995, 88348), (1699, 51740), (1990, 44174), (2587, 33980), (3398, 25870), (3980, 22087), (5174, 16990), (6796, 12935), (8495, 10348)]