8790920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 21384000

約数和(自身を除く): 12593080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 269, 344, 380, 430, 538, 760, 817, 860, 1076, 1345, 1634, 1720, 2152, 2690, 3268, 4085, 5111, 5380, 6536, 8170, 10222, 10760, 11567, 16340, 20444, 23134, 25555, 32680, 40888, 46268, 51110, 57835, 92536, 102220, 115670, 204440, 219773, 231340, 439546, 462680, 879092, 1098865, 1758184, 2197730, 4395460, 8790920]

約数ペア:

[(1, 8790920), (2, 4395460), (4, 2197730), (5, 1758184), (8, 1098865), (10, 879092), (19, 462680), (20, 439546), (38, 231340), (40, 219773), (43, 204440), (76, 115670), (86, 102220), (95, 92536), (152, 57835), (172, 51110), (190, 46268), (215, 40888), (269, 32680), (344, 25555), (380, 23134), (430, 20444), (538, 16340), (760, 11567), (817, 10760), (860, 10222), (1076, 8170), (1345, 6536), (1634, 5380), (1720, 5111), (2152, 4085), (2690, 3268)]