261777180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{623279}}^1$

素因数の和:623298

約数の個数: 48

約数和(自身を含む): 837688320

約数和(自身を除く): 575911140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 623279, 1246558, 1869837, 2493116, 3116395, 3739674, 4362953, 6232790, 7479348, 8725906, 9349185, 12465580, 13088859, 17451812, 18698370, 21814765, 26177718, 37396740, 43629530, 52355436, 65444295, 87259060, 130888590, 261777180]

約数ペア:

[(1, 261777180), (2, 130888590), (3, 87259060), (4, 65444295), (5, 52355436), (6, 43629530), (7, 37396740), (10, 26177718), (12, 21814765), (14, 18698370), (15, 17451812), (20, 13088859), (21, 12465580), (28, 9349185), (30, 8725906), (35, 7479348), (42, 6232790), (60, 4362953), (70, 3739674), (84, 3116395), (105, 2493116), (140, 1869837), (210, 1246558), (420, 623279)]