51132500

素因数分解:

$2^2\times 5^4\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:318

約数の個数: 60

約数和(自身を含む): 113429316

約数和(自身を除く): 62296816

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 113, 125, 181, 226, 250, 362, 452, 500, 565, 625, 724, 905, 1130, 1250, 1810, 2260, 2500, 2825, 3620, 4525, 5650, 9050, 11300, 14125, 18100, 20453, 22625, 28250, 40906, 45250, 56500, 70625, 81812, 90500, 102265, 113125, 141250, 204530, 226250, 282500, 409060, 452500, 511325, 1022650, 2045300, 2556625, 5113250, 10226500, 12783125, 25566250, 51132500]

約数ペア:

[(1, 51132500), (2, 25566250), (4, 12783125), (5, 10226500), (10, 5113250), (20, 2556625), (25, 2045300), (50, 1022650), (100, 511325), (113, 452500), (125, 409060), (181, 282500), (226, 226250), (250, 204530), (362, 141250), (452, 113125), (500, 102265), (565, 90500), (625, 81812), (724, 70625), (905, 56500), (1130, 45250), (1250, 40906), (1810, 28250), (2260, 22625), (2500, 20453), (2825, 18100), (3620, 14125), (4525, 11300), (5650, 9050)]