28994020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11981}}^1$

素因数の和:12012

約数の個数: 36

約数和(自身を含む): 66931452

約数和(自身を除く): 37937432

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 11981, 23962, 47924, 59905, 119810, 131791, 239620, 263582, 527164, 658955, 1317910, 1449701, 2635820, 2899402, 5798804, 7248505, 14497010, 28994020]

約数ペア:

[(1, 28994020), (2, 14497010), (4, 7248505), (5, 5798804), (10, 2899402), (11, 2635820), (20, 1449701), (22, 1317910), (44, 658955), (55, 527164), (110, 263582), (121, 239620), (220, 131791), (242, 119810), (484, 59905), (605, 47924), (1210, 23962), (2420, 11981)]