80168125

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 40

約数和(自身を含む): 108590240

約数和(自身を除く): 28422115

約数列:

[1, 5, 19, 25, 43, 95, 125, 157, 215, 475, 625, 785, 817, 1075, 2375, 2983, 3925, 4085, 5375, 6751, 11875, 14915, 19625, 20425, 26875, 33755, 74575, 98125, 102125, 128269, 168775, 372875, 510625, 641345, 843875, 1864375, 3206725, 4219375, 16033625, 80168125]

約数ペア:

[(1, 80168125), (5, 16033625), (19, 4219375), (25, 3206725), (43, 1864375), (95, 843875), (125, 641345), (157, 510625), (215, 372875), (475, 168775), (625, 128269), (785, 102125), (817, 98125), (1075, 74575), (2375, 33755), (2983, 26875), (3925, 20425), (4085, 19625), (5375, 14915), (6751, 11875)]