20853545

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 27847680

約数和(自身を除く): 6994135

約数列:

[1, 5, 19, 31, 73, 95, 97, 155, 365, 485, 589, 1387, 1843, 2263, 2945, 3007, 6935, 7081, 9215, 11315, 15035, 35405, 42997, 57133, 134539, 214985, 219511, 285665, 672695, 1097555, 4170709, 20853545]

約数ペア:

[(1, 20853545), (5, 4170709), (19, 1097555), (31, 672695), (73, 285665), (95, 219511), (97, 214985), (155, 134539), (365, 57133), (485, 42997), (589, 35405), (1387, 15035), (1843, 11315), (2263, 9215), (2945, 7081), (3007, 6935)]