213606140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{1447}}^1$

素因数の和:1539

約数の個数: 72

約数和(自身を含む): 501488736

約数和(自身を除く): 287882596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 121, 122, 220, 242, 244, 305, 484, 605, 610, 671, 1210, 1220, 1342, 1447, 2420, 2684, 2894, 3355, 5788, 6710, 7235, 7381, 13420, 14470, 14762, 15917, 28940, 29524, 31834, 36905, 63668, 73810, 79585, 88267, 147620, 159170, 175087, 176534, 318340, 350174, 353068, 441335, 700348, 875435, 882670, 970937, 1750870, 1765340, 1941874, 3501740, 3883748, 4854685, 9709370, 10680307, 19418740, 21360614, 42721228, 53401535, 106803070, 213606140]

約数ペア:

[(1, 213606140), (2, 106803070), (4, 53401535), (5, 42721228), (10, 21360614), (11, 19418740), (20, 10680307), (22, 9709370), (44, 4854685), (55, 3883748), (61, 3501740), (110, 1941874), (121, 1765340), (122, 1750870), (220, 970937), (242, 882670), (244, 875435), (305, 700348), (484, 441335), (605, 353068), (610, 350174), (671, 318340), (1210, 176534), (1220, 175087), (1342, 159170), (1447, 147620), (2420, 88267), (2684, 79585), (2894, 73810), (3355, 63668), (5788, 36905), (6710, 31834), (7235, 29524), (7381, 28940), (13420, 15917), (14470, 14762)]