20523510

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{10859}}^1$

素因数の和:10882

約数の個数: 64

約数和(自身を含む): 62553600

約数和(自身を除く): 42030090

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 10859, 21718, 32577, 54295, 65154, 76013, 97731, 108590, 152026, 162885, 195462, 228039, 293193, 325770, 380065, 456078, 488655, 586386, 684117, 760130, 977310, 1140195, 1368234, 1465965, 2052351, 2280390, 2931930, 3420585, 4104702, 6841170, 10261755, 20523510]

約数ペア:

[(1, 20523510), (2, 10261755), (3, 6841170), (5, 4104702), (6, 3420585), (7, 2931930), (9, 2280390), (10, 2052351), (14, 1465965), (15, 1368234), (18, 1140195), (21, 977310), (27, 760130), (30, 684117), (35, 586386), (42, 488655), (45, 456078), (54, 380065), (63, 325770), (70, 293193), (90, 228039), (105, 195462), (126, 162885), (135, 152026), (189, 108590), (210, 97731), (270, 76013), (315, 65154), (378, 54295), (630, 32577), (945, 21718), (1890, 10859)]