66559540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 143897040

約数和(自身を除く): 77337500

約数列:

[1, 2, 4, 5, 10, 20, 61, 89, 122, 178, 244, 305, 356, 445, 610, 613, 890, 1220, 1226, 1780, 2452, 3065, 5429, 6130, 10858, 12260, 21716, 27145, 37393, 54290, 54557, 74786, 108580, 109114, 149572, 186965, 218228, 272785, 373930, 545570, 747860, 1091140, 3327977, 6655954, 13311908, 16639885, 33279770, 66559540]

約数ペア:

[(1, 66559540), (2, 33279770), (4, 16639885), (5, 13311908), (10, 6655954), (20, 3327977), (61, 1091140), (89, 747860), (122, 545570), (178, 373930), (244, 272785), (305, 218228), (356, 186965), (445, 149572), (610, 109114), (613, 108580), (890, 74786), (1220, 54557), (1226, 54290), (1780, 37393), (2452, 27145), (3065, 21716), (5429, 12260), (6130, 10858)]