20514965

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 27820800

約数和(自身を除く): 7305835

約数列:

[1, 5, 19, 23, 41, 95, 115, 205, 229, 437, 779, 943, 1145, 2185, 3895, 4351, 4715, 5267, 9389, 17917, 21755, 26335, 46945, 89585, 100073, 178391, 215947, 500365, 891955, 1079735, 4102993, 20514965]

約数ペア:

[(1, 20514965), (5, 4102993), (19, 1079735), (23, 891955), (41, 500365), (95, 215947), (115, 178391), (205, 100073), (229, 89585), (437, 46945), (779, 26335), (943, 21755), (1145, 17917), (2185, 9389), (3895, 5267), (4351, 4715)]