20105360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:133

約数の個数: 120

約数和(自身を含む): 53829888

約数和(自身を除く): 33724528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 67, 80, 88, 110, 121, 124, 134, 155, 176, 220, 242, 248, 268, 310, 335, 341, 440, 484, 496, 536, 605, 620, 670, 682, 737, 880, 968, 1072, 1210, 1240, 1340, 1364, 1474, 1705, 1936, 2077, 2420, 2480, 2680, 2728, 2948, 3410, 3685, 3751, 4154, 4840, 5360, 5456, 5896, 6820, 7370, 7502, 8107, 8308, 9680, 10385, 11792, 13640, 14740, 15004, 16214, 16616, 18755, 20770, 22847, 27280, 29480, 30008, 32428, 33232, 37510, 40535, 41540, 45694, 58960, 60016, 64856, 75020, 81070, 83080, 91388, 114235, 129712, 150040, 162140, 166160, 182776, 228470, 251317, 300080, 324280, 365552, 456940, 502634, 648560, 913880, 1005268, 1256585, 1827760, 2010536, 2513170, 4021072, 5026340, 10052680, 20105360]

約数ペア:

[(1, 20105360), (2, 10052680), (4, 5026340), (5, 4021072), (8, 2513170), (10, 2010536), (11, 1827760), (16, 1256585), (20, 1005268), (22, 913880), (31, 648560), (40, 502634), (44, 456940), (55, 365552), (62, 324280), (67, 300080), (80, 251317), (88, 228470), (110, 182776), (121, 166160), (124, 162140), (134, 150040), (155, 129712), (176, 114235), (220, 91388), (242, 83080), (248, 81070), (268, 75020), (310, 64856), (335, 60016), (341, 58960), (440, 45694), (484, 41540), (496, 40535), (536, 37510), (605, 33232), (620, 32428), (670, 30008), (682, 29480), (737, 27280), (880, 22847), (968, 20770), (1072, 18755), (1210, 16616), (1240, 16214), (1340, 15004), (1364, 14740), (1474, 13640), (1705, 11792), (1936, 10385), (2077, 9680), (2420, 8308), (2480, 8107), (2680, 7502), (2728, 7370), (2948, 6820), (3410, 5896), (3685, 5456), (3751, 5360), (4154, 4840)]