20386485

素因数分解:

$3^6\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:94

約数の個数: 112

約数和(自身を含む): 45328896

約数和(自身を除く): 24942411

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 47, 51, 63, 81, 85, 105, 119, 135, 141, 153, 189, 235, 243, 255, 315, 329, 357, 405, 423, 459, 567, 595, 705, 729, 765, 799, 945, 987, 1071, 1215, 1269, 1377, 1645, 1701, 1785, 2115, 2295, 2397, 2835, 2961, 3213, 3645, 3807, 3995, 4131, 4935, 5103, 5355, 5593, 6345, 6885, 7191, 8505, 8883, 9639, 11421, 11985, 12393, 14805, 16065, 16779, 19035, 20655, 21573, 25515, 26649, 27965, 28917, 34263, 35955, 44415, 48195, 50337, 57105, 61965, 64719, 79947, 83895, 86751, 107865, 133245, 144585, 151011, 171315, 194157, 239841, 251685, 323595, 399735, 433755, 453033, 582471, 755055, 970785, 1199205, 1359099, 2265165, 2912355, 4077297, 6795495, 20386485]

約数ペア:

[(1, 20386485), (3, 6795495), (5, 4077297), (7, 2912355), (9, 2265165), (15, 1359099), (17, 1199205), (21, 970785), (27, 755055), (35, 582471), (45, 453033), (47, 433755), (51, 399735), (63, 323595), (81, 251685), (85, 239841), (105, 194157), (119, 171315), (135, 151011), (141, 144585), (153, 133245), (189, 107865), (235, 86751), (243, 83895), (255, 79947), (315, 64719), (329, 61965), (357, 57105), (405, 50337), (423, 48195), (459, 44415), (567, 35955), (595, 34263), (705, 28917), (729, 27965), (765, 26649), (799, 25515), (945, 21573), (987, 20655), (1071, 19035), (1215, 16779), (1269, 16065), (1377, 14805), (1645, 12393), (1701, 11985), (1785, 11421), (2115, 9639), (2295, 8883), (2397, 8505), (2835, 7191), (2961, 6885), (3213, 6345), (3645, 5593), (3807, 5355), (3995, 5103), (4131, 4935)]