221011340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:639

約数の個数: 72

約数和(自身を含む): 513554496

約数和(自身を除く): 292543156

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 271, 337, 484, 542, 605, 674, 1084, 1210, 1348, 1355, 1685, 2420, 2710, 2981, 3370, 3707, 5420, 5962, 6740, 7414, 11924, 14828, 14905, 18535, 29810, 32791, 37070, 40777, 59620, 65582, 74140, 81554, 91327, 131164, 163108, 163955, 182654, 203885, 327910, 365308, 407770, 456635, 655820, 815540, 913270, 1004597, 1826540, 2009194, 4018388, 5022985, 10045970, 11050567, 20091940, 22101134, 44202268, 55252835, 110505670, 221011340]

約数ペア:

[(1, 221011340), (2, 110505670), (4, 55252835), (5, 44202268), (10, 22101134), (11, 20091940), (20, 11050567), (22, 10045970), (44, 5022985), (55, 4018388), (110, 2009194), (121, 1826540), (220, 1004597), (242, 913270), (271, 815540), (337, 655820), (484, 456635), (542, 407770), (605, 365308), (674, 327910), (1084, 203885), (1210, 182654), (1348, 163955), (1355, 163108), (1685, 131164), (2420, 91327), (2710, 81554), (2981, 74140), (3370, 65582), (3707, 59620), (5420, 40777), (5962, 37070), (6740, 32791), (7414, 29810), (11924, 18535), (14828, 14905)]