68712020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{701}}^1$

素因数の和:765

約数の個数: 72

約数和(自身を含む): 161867160

約数和(自身を除く): 93155140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 169, 260, 290, 338, 377, 580, 676, 701, 754, 845, 1402, 1508, 1690, 1885, 2804, 3380, 3505, 3770, 4901, 7010, 7540, 9113, 9802, 14020, 18226, 19604, 20329, 24505, 36452, 40658, 45565, 49010, 81316, 91130, 98020, 101645, 118469, 182260, 203290, 236938, 264277, 406580, 473876, 528554, 592345, 1057108, 1184690, 1321385, 2369380, 2642770, 3435601, 5285540, 6871202, 13742404, 17178005, 34356010, 68712020]

約数ペア:

[(1, 68712020), (2, 34356010), (4, 17178005), (5, 13742404), (10, 6871202), (13, 5285540), (20, 3435601), (26, 2642770), (29, 2369380), (52, 1321385), (58, 1184690), (65, 1057108), (116, 592345), (130, 528554), (145, 473876), (169, 406580), (260, 264277), (290, 236938), (338, 203290), (377, 182260), (580, 118469), (676, 101645), (701, 98020), (754, 91130), (845, 81316), (1402, 49010), (1508, 45565), (1690, 40658), (1885, 36452), (2804, 24505), (3380, 20329), (3505, 19604), (3770, 18226), (4901, 14020), (7010, 9802), (7540, 9113)]