28375000

素因数分解:

$2^3\times 5^6\times {\mathrm{227}}^1$

素因数の和:263

約数の個数: 56

約数和(自身を含む): 66796020

約数和(自身を除く): 38421020

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 227, 250, 454, 500, 625, 908, 1000, 1135, 1250, 1816, 2270, 2500, 3125, 4540, 5000, 5675, 6250, 9080, 11350, 12500, 15625, 22700, 25000, 28375, 31250, 45400, 56750, 62500, 113500, 125000, 141875, 227000, 283750, 567500, 709375, 1135000, 1418750, 2837500, 3546875, 5675000, 7093750, 14187500, 28375000]

約数ペア:

[(1, 28375000), (2, 14187500), (4, 7093750), (5, 5675000), (8, 3546875), (10, 2837500), (20, 1418750), (25, 1135000), (40, 709375), (50, 567500), (100, 283750), (125, 227000), (200, 141875), (227, 125000), (250, 113500), (454, 62500), (500, 56750), (625, 45400), (908, 31250), (1000, 28375), (1135, 25000), (1250, 22700), (1816, 15625), (2270, 12500), (2500, 11350), (3125, 9080), (4540, 6250), (5000, 5675)]