19376875

素因数分解:

$5^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:173

約数の個数: 40

約数和(自身を含む): 28590848

約数和(自身を除く): 9213973

約数列:

[1, 5, 7, 25, 35, 43, 103, 125, 175, 215, 301, 515, 625, 721, 875, 1075, 1505, 2575, 3605, 4375, 4429, 5375, 7525, 12875, 18025, 22145, 26875, 31003, 37625, 64375, 90125, 110725, 155015, 188125, 450625, 553625, 775075, 2768125, 3875375, 19376875]

約数ペア:

[(1, 19376875), (5, 3875375), (7, 2768125), (25, 775075), (35, 553625), (43, 450625), (103, 188125), (125, 155015), (175, 110725), (215, 90125), (301, 64375), (515, 37625), (625, 31003), (721, 26875), (875, 22145), (1075, 18025), (1505, 12875), (2575, 7525), (3605, 5375), (4375, 4429)]