19575320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 47520000

約数和(自身を除く): 27944680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 599, 760, 817, 860, 1198, 1634, 1720, 2396, 2995, 3268, 4085, 4792, 5990, 6536, 8170, 11381, 11980, 16340, 22762, 23960, 25757, 32680, 45524, 51514, 56905, 91048, 103028, 113810, 128785, 206056, 227620, 257570, 455240, 489383, 515140, 978766, 1030280, 1957532, 2446915, 3915064, 4893830, 9787660, 19575320]

約数ペア:

[(1, 19575320), (2, 9787660), (4, 4893830), (5, 3915064), (8, 2446915), (10, 1957532), (19, 1030280), (20, 978766), (38, 515140), (40, 489383), (43, 455240), (76, 257570), (86, 227620), (95, 206056), (152, 128785), (172, 113810), (190, 103028), (215, 91048), (344, 56905), (380, 51514), (430, 45524), (599, 32680), (760, 25757), (817, 23960), (860, 22762), (1198, 16340), (1634, 11980), (1720, 11381), (2396, 8170), (2995, 6536), (3268, 5990), (4085, 4792)]