8174920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 20160000

約数和(自身を除く): 11985080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 199, 260, 316, 395, 398, 520, 632, 790, 796, 995, 1027, 1580, 1592, 1990, 2054, 2587, 3160, 3980, 4108, 5135, 5174, 7960, 8216, 10270, 10348, 12935, 15721, 20540, 20696, 25870, 31442, 41080, 51740, 62884, 78605, 103480, 125768, 157210, 204373, 314420, 408746, 628840, 817492, 1021865, 1634984, 2043730, 4087460, 8174920]

約数ペア:

[(1, 8174920), (2, 4087460), (4, 2043730), (5, 1634984), (8, 1021865), (10, 817492), (13, 628840), (20, 408746), (26, 314420), (40, 204373), (52, 157210), (65, 125768), (79, 103480), (104, 78605), (130, 62884), (158, 51740), (199, 41080), (260, 31442), (316, 25870), (395, 20696), (398, 20540), (520, 15721), (632, 12935), (790, 10348), (796, 10270), (995, 8216), (1027, 7960), (1580, 5174), (1592, 5135), (1990, 4108), (2054, 3980), (2587, 3160)]