31507700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 86661120

約数和(自身を除く): 55153420

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 25, 28, 35, 38, 46, 50, 70, 76, 92, 95, 100, 103, 115, 133, 140, 161, 175, 190, 206, 230, 266, 322, 350, 380, 412, 437, 460, 475, 515, 532, 575, 644, 665, 700, 721, 805, 874, 950, 1030, 1150, 1330, 1442, 1610, 1748, 1900, 1957, 2060, 2185, 2300, 2369, 2575, 2660, 2884, 3059, 3220, 3325, 3605, 3914, 4025, 4370, 4738, 5150, 6118, 6650, 7210, 7828, 8050, 8740, 9476, 9785, 10300, 10925, 11845, 12236, 13300, 13699, 14420, 15295, 16100, 16583, 18025, 19570, 21850, 23690, 27398, 30590, 33166, 36050, 39140, 43700, 45011, 47380, 48925, 54796, 59225, 61180, 66332, 68495, 72100, 76475, 82915, 90022, 97850, 118450, 136990, 152950, 165830, 180044, 195700, 225055, 236900, 273980, 305900, 315077, 331660, 342475, 414575, 450110, 630154, 684950, 829150, 900220, 1125275, 1260308, 1369900, 1575385, 1658300, 2250550, 3150770, 4501100, 6301540, 7876925, 15753850, 31507700]

約数ペア:

[(1, 31507700), (2, 15753850), (4, 7876925), (5, 6301540), (7, 4501100), (10, 3150770), (14, 2250550), (19, 1658300), (20, 1575385), (23, 1369900), (25, 1260308), (28, 1125275), (35, 900220), (38, 829150), (46, 684950), (50, 630154), (70, 450110), (76, 414575), (92, 342475), (95, 331660), (100, 315077), (103, 305900), (115, 273980), (133, 236900), (140, 225055), (161, 195700), (175, 180044), (190, 165830), (206, 152950), (230, 136990), (266, 118450), (322, 97850), (350, 90022), (380, 82915), (412, 76475), (437, 72100), (460, 68495), (475, 66332), (515, 61180), (532, 59225), (575, 54796), (644, 48925), (665, 47380), (700, 45011), (721, 43700), (805, 39140), (874, 36050), (950, 33166), (1030, 30590), (1150, 27398), (1330, 23690), (1442, 21850), (1610, 19570), (1748, 18025), (1900, 16583), (1957, 16100), (2060, 15295), (2185, 14420), (2300, 13699), (2369, 13300), (2575, 12236), (2660, 11845), (2884, 10925), (3059, 10300), (3220, 9785), (3325, 9476), (3605, 8740), (3914, 8050), (4025, 7828), (4370, 7210), (4738, 6650), (5150, 6118)]