20660796

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 56840784

約数和(自身を除く): 36179988

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 131, 156, 234, 262, 337, 393, 468, 524, 674, 786, 1011, 1179, 1348, 1572, 1703, 2022, 2358, 3033, 3406, 4044, 4381, 4716, 5109, 6066, 6812, 8762, 10218, 12132, 13143, 15327, 17524, 20436, 26286, 30654, 39429, 44147, 52572, 61308, 78858, 88294, 132441, 157716, 176588, 264882, 397323, 529764, 573911, 794646, 1147822, 1589292, 1721733, 2295644, 3443466, 5165199, 6886932, 10330398, 20660796]

約数ペア:

[(1, 20660796), (2, 10330398), (3, 6886932), (4, 5165199), (6, 3443466), (9, 2295644), (12, 1721733), (13, 1589292), (18, 1147822), (26, 794646), (36, 573911), (39, 529764), (52, 397323), (78, 264882), (117, 176588), (131, 157716), (156, 132441), (234, 88294), (262, 78858), (337, 61308), (393, 52572), (468, 44147), (524, 39429), (674, 30654), (786, 26286), (1011, 20436), (1179, 17524), (1348, 15327), (1572, 13143), (1703, 12132), (2022, 10218), (2358, 8762), (3033, 6812), (3406, 6066), (4044, 5109), (4381, 4716)]