20193369980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1\times {\mathrm{4129}}^1$

素因数の和:4519

約数の個数: 96

約数和(自身を含む): 48996205440

約数和(自身を除く): 28802835460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 193, 362, 386, 724, 772, 905, 965, 1267, 1351, 1810, 1930, 2534, 2702, 3620, 3860, 4129, 5068, 5404, 6335, 6755, 8258, 12670, 13510, 16516, 20645, 25340, 27020, 28903, 34933, 41290, 57806, 69866, 82580, 115612, 139732, 144515, 174665, 244531, 289030, 349330, 489062, 578060, 698660, 747349, 796897, 978124, 1222655, 1494698, 1593794, 2445310, 2989396, 3187588, 3736745, 3984485, 4890620, 5231443, 5578279, 7473490, 7968970, 10462886, 11156558, 14946980, 15937940, 20925772, 22313116, 26157215, 27891395, 52314430, 55782790, 104628860, 111565580, 144238357, 288476714, 576953428, 721191785, 1009668499, 1442383570, 2019336998, 2884767140, 4038673996, 5048342495, 10096684990, 20193369980]

約数ペア:

[(1, 20193369980), (2, 10096684990), (4, 5048342495), (5, 4038673996), (7, 2884767140), (10, 2019336998), (14, 1442383570), (20, 1009668499), (28, 721191785), (35, 576953428), (70, 288476714), (140, 144238357), (181, 111565580), (193, 104628860), (362, 55782790), (386, 52314430), (724, 27891395), (772, 26157215), (905, 22313116), (965, 20925772), (1267, 15937940), (1351, 14946980), (1810, 11156558), (1930, 10462886), (2534, 7968970), (2702, 7473490), (3620, 5578279), (3860, 5231443), (4129, 4890620), (5068, 3984485), (5404, 3736745), (6335, 3187588), (6755, 2989396), (8258, 2445310), (12670, 1593794), (13510, 1494698), (16516, 1222655), (20645, 978124), (25340, 796897), (27020, 747349), (28903, 698660), (34933, 578060), (41290, 489062), (57806, 349330), (69866, 289030), (82580, 244531), (115612, 174665), (139732, 144515)]