86491900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1289}}^1$

素因数の和:1375

約数の個数: 72

約数和(自身を含む): 208267920

約数和(自身を除く): 121776020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 61, 100, 110, 122, 220, 244, 275, 305, 550, 610, 671, 1100, 1220, 1289, 1342, 1525, 2578, 2684, 3050, 3355, 5156, 6100, 6445, 6710, 12890, 13420, 14179, 16775, 25780, 28358, 32225, 33550, 56716, 64450, 67100, 70895, 78629, 128900, 141790, 157258, 283580, 314516, 354475, 393145, 708950, 786290, 864919, 1417900, 1572580, 1729838, 1965725, 3459676, 3931450, 4324595, 7862900, 8649190, 17298380, 21622975, 43245950, 86491900]

約数ペア:

[(1, 86491900), (2, 43245950), (4, 21622975), (5, 17298380), (10, 8649190), (11, 7862900), (20, 4324595), (22, 3931450), (25, 3459676), (44, 1965725), (50, 1729838), (55, 1572580), (61, 1417900), (100, 864919), (110, 786290), (122, 708950), (220, 393145), (244, 354475), (275, 314516), (305, 283580), (550, 157258), (610, 141790), (671, 128900), (1100, 78629), (1220, 70895), (1289, 67100), (1342, 64450), (1525, 56716), (2578, 33550), (2684, 32225), (3050, 28358), (3355, 25780), (5156, 16775), (6100, 14179), (6445, 13420), (6710, 12890)]