28196740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9859}}^1$

素因数の和:9892

約数の個数: 48

約数和(自身を含む): 69572160

約数和(自身を除く): 41375420

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, 9859, 19718, 39436, 49295, 98590, 108449, 128167, 197180, 216898, 256334, 433796, 512668, 542245, 640835, 1084490, 1281670, 1409837, 2168980, 2563340, 2819674, 5639348, 7049185, 14098370, 28196740]

約数ペア:

[(1, 28196740), (2, 14098370), (4, 7049185), (5, 5639348), (10, 2819674), (11, 2563340), (13, 2168980), (20, 1409837), (22, 1281670), (26, 1084490), (44, 640835), (52, 542245), (55, 512668), (65, 433796), (110, 256334), (130, 216898), (143, 197180), (220, 128167), (260, 108449), (286, 98590), (572, 49295), (715, 39436), (1430, 19718), (2860, 9859)]