20642280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{179}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 64346400

約数和(自身を除く): 43704120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 179, 186, 248, 310, 358, 372, 465, 537, 620, 716, 744, 895, 930, 961, 1074, 1240, 1432, 1790, 1860, 1922, 2148, 2685, 2883, 3580, 3720, 3844, 4296, 4805, 5370, 5549, 5766, 7160, 7688, 9610, 10740, 11098, 11532, 14415, 16647, 19220, 21480, 22196, 23064, 27745, 28830, 33294, 38440, 44392, 55490, 57660, 66588, 83235, 110980, 115320, 133176, 166470, 172019, 221960, 332940, 344038, 516057, 665880, 688076, 860095, 1032114, 1376152, 1720190, 2064228, 2580285, 3440380, 4128456, 5160570, 6880760, 10321140, 20642280]

約数ペア:

[(1, 20642280), (2, 10321140), (3, 6880760), (4, 5160570), (5, 4128456), (6, 3440380), (8, 2580285), (10, 2064228), (12, 1720190), (15, 1376152), (20, 1032114), (24, 860095), (30, 688076), (31, 665880), (40, 516057), (60, 344038), (62, 332940), (93, 221960), (120, 172019), (124, 166470), (155, 133176), (179, 115320), (186, 110980), (248, 83235), (310, 66588), (358, 57660), (372, 55490), (465, 44392), (537, 38440), (620, 33294), (716, 28830), (744, 27745), (895, 23064), (930, 22196), (961, 21480), (1074, 19220), (1240, 16647), (1432, 14415), (1790, 11532), (1860, 11098), (1922, 10740), (2148, 9610), (2685, 7688), (2883, 7160), (3580, 5766), (3720, 5549), (3844, 5370), (4296, 4805)]