18525320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{593}}^1$

素因数の和:686

約数の個数: 64

約数和(自身を含む): 46189440

約数和(自身を除く): 27664120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 593, 710, 781, 1186, 1420, 1562, 2372, 2840, 2965, 3124, 3905, 4744, 5930, 6248, 6523, 7810, 11860, 13046, 15620, 23720, 26092, 31240, 32615, 42103, 52184, 65230, 84206, 130460, 168412, 210515, 260920, 336824, 421030, 463133, 842060, 926266, 1684120, 1852532, 2315665, 3705064, 4631330, 9262660, 18525320]

約数ペア:

[(1, 18525320), (2, 9262660), (4, 4631330), (5, 3705064), (8, 2315665), (10, 1852532), (11, 1684120), (20, 926266), (22, 842060), (40, 463133), (44, 421030), (55, 336824), (71, 260920), (88, 210515), (110, 168412), (142, 130460), (220, 84206), (284, 65230), (355, 52184), (440, 42103), (568, 32615), (593, 31240), (710, 26092), (781, 23720), (1186, 15620), (1420, 13046), (1562, 11860), (2372, 7810), (2840, 6523), (2965, 6248), (3124, 5930), (3905, 4744)]