21125500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 52835328

約数和(自身を除く): 31709828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 125, 167, 220, 230, 250, 253, 275, 334, 460, 500, 506, 550, 575, 668, 835, 1012, 1100, 1150, 1265, 1375, 1670, 1837, 2300, 2530, 2750, 2875, 3340, 3674, 3841, 4175, 5060, 5500, 5750, 6325, 7348, 7682, 8350, 9185, 11500, 12650, 15364, 16700, 18370, 19205, 20875, 25300, 31625, 36740, 38410, 41750, 42251, 45925, 63250, 76820, 83500, 84502, 91850, 96025, 126500, 169004, 183700, 192050, 211255, 229625, 384100, 422510, 459250, 480125, 845020, 918500, 960250, 1056275, 1920500, 2112550, 4225100, 5281375, 10562750, 21125500]

約数ペア:

[(1, 21125500), (2, 10562750), (4, 5281375), (5, 4225100), (10, 2112550), (11, 1920500), (20, 1056275), (22, 960250), (23, 918500), (25, 845020), (44, 480125), (46, 459250), (50, 422510), (55, 384100), (92, 229625), (100, 211255), (110, 192050), (115, 183700), (125, 169004), (167, 126500), (220, 96025), (230, 91850), (250, 84502), (253, 83500), (275, 76820), (334, 63250), (460, 45925), (500, 42251), (506, 41750), (550, 38410), (575, 36740), (668, 31625), (835, 25300), (1012, 20875), (1100, 19205), (1150, 18370), (1265, 16700), (1375, 15364), (1670, 12650), (1837, 11500), (2300, 9185), (2530, 8350), (2750, 7682), (2875, 7348), (3340, 6325), (3674, 5750), (3841, 5500), (4175, 5060)]