20180200

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 50621760

約数和(自身を除く): 30441560

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 41, 46, 50, 82, 92, 100, 107, 115, 164, 184, 200, 205, 214, 230, 328, 410, 428, 460, 535, 575, 820, 856, 920, 943, 1025, 1070, 1150, 1640, 1886, 2050, 2140, 2300, 2461, 2675, 3772, 4100, 4280, 4387, 4600, 4715, 4922, 5350, 7544, 8200, 8774, 9430, 9844, 10700, 12305, 17548, 18860, 19688, 21400, 21935, 23575, 24610, 35096, 37720, 43870, 47150, 49220, 61525, 87740, 94300, 98440, 100901, 109675, 123050, 175480, 188600, 201802, 219350, 246100, 403604, 438700, 492200, 504505, 807208, 877400, 1009010, 2018020, 2522525, 4036040, 5045050, 10090100, 20180200]

約数ペア:

[(1, 20180200), (2, 10090100), (4, 5045050), (5, 4036040), (8, 2522525), (10, 2018020), (20, 1009010), (23, 877400), (25, 807208), (40, 504505), (41, 492200), (46, 438700), (50, 403604), (82, 246100), (92, 219350), (100, 201802), (107, 188600), (115, 175480), (164, 123050), (184, 109675), (200, 100901), (205, 98440), (214, 94300), (230, 87740), (328, 61525), (410, 49220), (428, 47150), (460, 43870), (535, 37720), (575, 35096), (820, 24610), (856, 23575), (920, 21935), (943, 21400), (1025, 19688), (1070, 18860), (1150, 17548), (1640, 12305), (1886, 10700), (2050, 9844), (2140, 9430), (2300, 8774), (2461, 8200), (2675, 7544), (3772, 5350), (4100, 4922), (4280, 4715), (4387, 4600)]