81318380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28433}}^1$

素因数の和:28466

約数の個数: 48

約数和(自身を含む): 200630304

約数和(自身を除く): 119311924

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 28433, 56866, 113732, 142165, 284330, 312763, 369629, 568660, 625526, 739258, 1251052, 1478516, 1563815, 1848145, 3127630, 3696290, 4065919, 6255260, 7392580, 8131838, 16263676, 20329595, 40659190, 81318380]

約数ペア:

[(1, 81318380), (2, 40659190), (4, 20329595), (5, 16263676), (10, 8131838), (11, 7392580), (13, 6255260), (20, 4065919), (22, 3696290), (26, 3127630), (44, 1848145), (52, 1563815), (55, 1478516), (65, 1251052), (110, 739258), (130, 625526), (143, 568660), (220, 369629), (260, 312763), (286, 284330), (572, 142165), (715, 113732), (1430, 56866), (2860, 28433)]