1999490075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{967}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 2771298816

約数和(自身を除く): 771808741

約数列:

[1, 5, 11, 25, 55, 73, 103, 275, 365, 515, 803, 967, 1133, 1825, 2575, 4015, 4835, 5665, 7519, 10637, 20075, 24175, 28325, 37595, 53185, 70591, 82709, 99601, 187975, 265925, 352955, 413545, 498005, 776501, 1095611, 1764775, 2067725, 2490025, 3882505, 5478055, 7270873, 19412525, 27390275, 36354365, 79979603, 181771825, 399898015, 1999490075]

約数ペア:

[(1, 1999490075), (5, 399898015), (11, 181771825), (25, 79979603), (55, 36354365), (73, 27390275), (103, 19412525), (275, 7270873), (365, 5478055), (515, 3882505), (803, 2490025), (967, 2067725), (1133, 1764775), (1825, 1095611), (2575, 776501), (4015, 498005), (4835, 413545), (5665, 352955), (7519, 265925), (10637, 187975), (20075, 99601), (24175, 82709), (28325, 70591), (37595, 53185)]