20540772

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2203}}^1$

素因数の和:2257

約数の個数: 72

約数和(自身を含む): 60971456

約数和(自身を除く): 40430684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 63, 74, 84, 111, 126, 148, 222, 252, 259, 333, 444, 518, 666, 777, 1036, 1332, 1554, 2203, 2331, 3108, 4406, 4662, 6609, 8812, 9324, 13218, 15421, 19827, 26436, 30842, 39654, 46263, 61684, 79308, 81511, 92526, 138789, 163022, 185052, 244533, 277578, 326044, 489066, 555156, 570577, 733599, 978132, 1141154, 1467198, 1711731, 2282308, 2934396, 3423462, 5135193, 6846924, 10270386, 20540772]

約数ペア:

[(1, 20540772), (2, 10270386), (3, 6846924), (4, 5135193), (6, 3423462), (7, 2934396), (9, 2282308), (12, 1711731), (14, 1467198), (18, 1141154), (21, 978132), (28, 733599), (36, 570577), (37, 555156), (42, 489066), (63, 326044), (74, 277578), (84, 244533), (111, 185052), (126, 163022), (148, 138789), (222, 92526), (252, 81511), (259, 79308), (333, 61684), (444, 46263), (518, 39654), (666, 30842), (777, 26436), (1036, 19827), (1332, 15421), (1554, 13218), (2203, 9324), (2331, 8812), (3108, 6609), (4406, 4662)]