20787003678

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^2\times {\mathrm{449}}^1\times {\mathrm{499}}^1$

素因数の和:1054

約数の個数: 96

約数和(自身を含む): 48751200000

約数和(自身を除く): 27964196322

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 449, 499, 658, 898, 987, 998, 1347, 1497, 1974, 2209, 2694, 2994, 3143, 3493, 4418, 6286, 6627, 6986, 9429, 10479, 13254, 15463, 18858, 20958, 21103, 23453, 30926, 42206, 46389, 46906, 63309, 70359, 92778, 126618, 140718, 147721, 164171, 224051, 295442, 328342, 443163, 448102, 492513, 672153, 886326, 985026, 991841, 1102291, 1344306, 1568357, 1983682, 2204582, 2975523, 3136714, 3306873, 4705071, 5951046, 6613746, 6942887, 7716037, 9410142, 10530397, 13885774, 15432074, 20828661, 21060794, 23148111, 31591191, 41657322, 46296222, 63182382, 73712779, 147425558, 221138337, 442276674, 494928659, 989857318, 1484785977, 2969571954, 3464500613, 6929001226, 10393501839, 20787003678]

約数ペア:

[(1, 20787003678), (2, 10393501839), (3, 6929001226), (6, 3464500613), (7, 2969571954), (14, 1484785977), (21, 989857318), (42, 494928659), (47, 442276674), (94, 221138337), (141, 147425558), (282, 73712779), (329, 63182382), (449, 46296222), (499, 41657322), (658, 31591191), (898, 23148111), (987, 21060794), (998, 20828661), (1347, 15432074), (1497, 13885774), (1974, 10530397), (2209, 9410142), (2694, 7716037), (2994, 6942887), (3143, 6613746), (3493, 5951046), (4418, 4705071), (6286, 3306873), (6627, 3136714), (6986, 2975523), (9429, 2204582), (10479, 1983682), (13254, 1568357), (15463, 1344306), (18858, 1102291), (20958, 991841), (21103, 985026), (23453, 886326), (30926, 672153), (42206, 492513), (46389, 448102), (46906, 443163), (63309, 328342), (70359, 295442), (92778, 224051), (126618, 164171), (140718, 147721)]