821569275

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 1620833760

約数和(自身を除く): 799264485

約数列:

[1, 3, 5, 9, 15, 25, 29, 37, 41, 45, 75, 83, 87, 111, 123, 145, 185, 205, 225, 249, 261, 333, 369, 415, 435, 555, 615, 725, 747, 925, 1025, 1073, 1189, 1245, 1305, 1517, 1665, 1845, 2075, 2175, 2407, 2775, 3071, 3075, 3219, 3403, 3567, 3735, 4551, 5365, 5945, 6225, 6525, 7221, 7585, 8325, 9213, 9225, 9657, 10209, 10701, 12035, 13653, 15355, 16095, 17015, 17835, 18675, 21663, 22755, 26825, 27639, 29725, 30627, 36105, 37925, 43993, 46065, 48285, 51045, 53505, 60175, 68265, 76775, 80475, 85075, 89059, 89175, 98687, 108315, 113775, 125911, 131979, 138195, 153135, 180525, 219965, 230325, 241425, 255225, 267177, 267525, 296061, 341325, 377733, 395937, 445295, 493435, 541575, 629555, 659895, 690975, 765675, 801531, 888183, 1099825, 1133199, 1335885, 1480305, 1888665, 1979685, 2226475, 2467175, 3147775, 3299475, 3651419, 4007655, 4440915, 5665995, 6679425, 7401525, 9443325, 9898425, 10954257, 18257095, 20038275, 22204575, 28329975, 32862771, 54771285, 91285475, 164313855, 273856425, 821569275]

約数ペア:

[(1, 821569275), (3, 273856425), (5, 164313855), (9, 91285475), (15, 54771285), (25, 32862771), (29, 28329975), (37, 22204575), (41, 20038275), (45, 18257095), (75, 10954257), (83, 9898425), (87, 9443325), (111, 7401525), (123, 6679425), (145, 5665995), (185, 4440915), (205, 4007655), (225, 3651419), (249, 3299475), (261, 3147775), (333, 2467175), (369, 2226475), (415, 1979685), (435, 1888665), (555, 1480305), (615, 1335885), (725, 1133199), (747, 1099825), (925, 888183), (1025, 801531), (1073, 765675), (1189, 690975), (1245, 659895), (1305, 629555), (1517, 541575), (1665, 493435), (1845, 445295), (2075, 395937), (2175, 377733), (2407, 341325), (2775, 296061), (3071, 267525), (3075, 267177), (3219, 255225), (3403, 241425), (3567, 230325), (3735, 219965), (4551, 180525), (5365, 153135), (5945, 138195), (6225, 131979), (6525, 125911), (7221, 113775), (7585, 108315), (8325, 98687), (9213, 89175), (9225, 89059), (9657, 85075), (10209, 80475), (10701, 76775), (12035, 68265), (13653, 60175), (15355, 53505), (16095, 51045), (17015, 48285), (17835, 46065), (18675, 43993), (21663, 37925), (22755, 36105), (26825, 30627), (27639, 29725)]