201804979960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8779}}^1\times {\mathrm{9421}}^1$

素因数の和:18272

約数の個数: 64

約数和(自身を含む): 461606392800

約数和(自身を除く): 259801412840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 8779, 9421, 17558, 18842, 35116, 37684, 43895, 47105, 70232, 75368, 87790, 94210, 175580, 188420, 351160, 376840, 535519, 574681, 1071038, 1149362, 2142076, 2298724, 2677595, 2873405, 4284152, 4597448, 5355190, 5746810, 10710380, 11493620, 21420760, 22987240, 82706959, 165413918, 330827836, 413534795, 661655672, 827069590, 1654139180, 3308278360, 5045124499, 10090248998, 20180497996, 25225622495, 40360995992, 50451244990, 100902489980, 201804979960]

約数ペア:

[(1, 201804979960), (2, 100902489980), (4, 50451244990), (5, 40360995992), (8, 25225622495), (10, 20180497996), (20, 10090248998), (40, 5045124499), (61, 3308278360), (122, 1654139180), (244, 827069590), (305, 661655672), (488, 413534795), (610, 330827836), (1220, 165413918), (2440, 82706959), (8779, 22987240), (9421, 21420760), (17558, 11493620), (18842, 10710380), (35116, 5746810), (37684, 5355190), (43895, 4597448), (47105, 4284152), (70232, 2873405), (75368, 2677595), (87790, 2298724), (94210, 2142076), (175580, 1149362), (188420, 1071038), (351160, 574681), (376840, 535519)]