20958191520

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{6237557}}^1$

素因数の和:6237582

約数の個数: 96

約数和(自身を含む): 75449501568

約数和(自身を除く): 54491310048

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 6237557, 12475114, 18712671, 24950228, 31187785, 37425342, 43662899, 49900456, 62375570, 74850684, 87325798, 93563355, 99800912, 124751140, 130988697, 149701368, 174651596, 187126710, 199601824, 218314495, 249502280, 261977394, 299402736, 349303192, 374253420, 436628990, 499004560, 523954788, 598805472, 654943485, 698606384, 748506840, 873257980, 998009120, 1047909576, 1309886970, 1397212768, 1497013680, 1746515960, 2095819152, 2619773940, 2994027360, 3493031920, 4191638304, 5239547880, 6986063840, 10479095760, 20958191520]

約数ペア:

[(1, 20958191520), (2, 10479095760), (3, 6986063840), (4, 5239547880), (5, 4191638304), (6, 3493031920), (7, 2994027360), (8, 2619773940), (10, 2095819152), (12, 1746515960), (14, 1497013680), (15, 1397212768), (16, 1309886970), (20, 1047909576), (21, 998009120), (24, 873257980), (28, 748506840), (30, 698606384), (32, 654943485), (35, 598805472), (40, 523954788), (42, 499004560), (48, 436628990), (56, 374253420), (60, 349303192), (70, 299402736), (80, 261977394), (84, 249502280), (96, 218314495), (105, 199601824), (112, 187126710), (120, 174651596), (140, 149701368), (160, 130988697), (168, 124751140), (210, 99800912), (224, 93563355), (240, 87325798), (280, 74850684), (336, 62375570), (420, 49900456), (480, 43662899), (560, 37425342), (672, 31187785), (840, 24950228), (1120, 18712671), (1680, 12475114), (3360, 6237557)]