55267220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 119523600

約数和(自身を除く): 64256380

約数列:

[1, 2, 4, 5, 10, 20, 61, 89, 122, 178, 244, 305, 356, 445, 509, 610, 890, 1018, 1220, 1780, 2036, 2545, 5090, 5429, 10180, 10858, 21716, 27145, 31049, 45301, 54290, 62098, 90602, 108580, 124196, 155245, 181204, 226505, 310490, 453010, 620980, 906020, 2763361, 5526722, 11053444, 13816805, 27633610, 55267220]

約数ペア:

[(1, 55267220), (2, 27633610), (4, 13816805), (5, 11053444), (10, 5526722), (20, 2763361), (61, 906020), (89, 620980), (122, 453010), (178, 310490), (244, 226505), (305, 181204), (356, 155245), (445, 124196), (509, 108580), (610, 90602), (890, 62098), (1018, 54290), (1220, 45301), (1780, 31049), (2036, 27145), (2545, 21716), (5090, 10858), (5429, 10180)]