20744200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 52228800

約数和(自身を除く): 31484600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 53, 76, 95, 100, 103, 106, 152, 190, 200, 206, 212, 265, 380, 412, 424, 475, 515, 530, 760, 824, 950, 1007, 1030, 1060, 1325, 1900, 1957, 2014, 2060, 2120, 2575, 2650, 3800, 3914, 4028, 4120, 5035, 5150, 5300, 5459, 7828, 8056, 9785, 10070, 10300, 10600, 10918, 15656, 19570, 20140, 20600, 21836, 25175, 27295, 39140, 40280, 43672, 48925, 50350, 54590, 78280, 97850, 100700, 103721, 109180, 136475, 195700, 201400, 207442, 218360, 272950, 391400, 414884, 518605, 545900, 829768, 1037210, 1091800, 2074420, 2593025, 4148840, 5186050, 10372100, 20744200]

約数ペア:

[(1, 20744200), (2, 10372100), (4, 5186050), (5, 4148840), (8, 2593025), (10, 2074420), (19, 1091800), (20, 1037210), (25, 829768), (38, 545900), (40, 518605), (50, 414884), (53, 391400), (76, 272950), (95, 218360), (100, 207442), (103, 201400), (106, 195700), (152, 136475), (190, 109180), (200, 103721), (206, 100700), (212, 97850), (265, 78280), (380, 54590), (412, 50350), (424, 48925), (475, 43672), (515, 40280), (530, 39140), (760, 27295), (824, 25175), (950, 21836), (1007, 20600), (1030, 20140), (1060, 19570), (1325, 15656), (1900, 10918), (1957, 10600), (2014, 10300), (2060, 10070), (2120, 9785), (2575, 8056), (2650, 7828), (3800, 5459), (3914, 5300), (4028, 5150), (4120, 5035)]