66520820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{373}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 144450768

約数和(自身を除く): 77929948

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 241, 370, 373, 482, 740, 746, 964, 1205, 1492, 1865, 2410, 3730, 4820, 7460, 8917, 13801, 17834, 27602, 35668, 44585, 55204, 69005, 89170, 89893, 138010, 178340, 179786, 276020, 359572, 449465, 898930, 1797860, 3326041, 6652082, 13304164, 16630205, 33260410, 66520820]

約数ペア:

[(1, 66520820), (2, 33260410), (4, 16630205), (5, 13304164), (10, 6652082), (20, 3326041), (37, 1797860), (74, 898930), (148, 449465), (185, 359572), (241, 276020), (370, 179786), (373, 178340), (482, 138010), (740, 89893), (746, 89170), (964, 69005), (1205, 55204), (1492, 44585), (1865, 35668), (2410, 27602), (3730, 17834), (4820, 13801), (7460, 8917)]