71178580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{1289}}^1$

素因数の和:1560

約数の個数: 48

約数和(自身を含む): 163840320

約数和(自身を除く): 92661740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 251, 502, 1004, 1255, 1289, 2510, 2578, 2761, 5020, 5156, 5522, 6445, 11044, 12890, 13805, 14179, 25780, 27610, 28358, 55220, 56716, 70895, 141790, 283580, 323539, 647078, 1294156, 1617695, 3235390, 3558929, 6470780, 7117858, 14235716, 17794645, 35589290, 71178580]

約数ペア:

[(1, 71178580), (2, 35589290), (4, 17794645), (5, 14235716), (10, 7117858), (11, 6470780), (20, 3558929), (22, 3235390), (44, 1617695), (55, 1294156), (110, 647078), (220, 323539), (251, 283580), (502, 141790), (1004, 70895), (1255, 56716), (1289, 55220), (2510, 28358), (2578, 27610), (2761, 25780), (5020, 14179), (5156, 13805), (5522, 12890), (6445, 11044)]