51320220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1721}}^1$

素因数の和:1811

約数の個数: 96

約数和(自身を含む): 166634496

約数和(自身を除く): 115314276

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 105, 140, 142, 210, 213, 284, 355, 420, 426, 497, 710, 852, 994, 1065, 1420, 1491, 1721, 1988, 2130, 2485, 2982, 3442, 4260, 4970, 5163, 5964, 6884, 7455, 8605, 9940, 10326, 12047, 14910, 17210, 20652, 24094, 25815, 29820, 34420, 36141, 48188, 51630, 60235, 72282, 103260, 120470, 122191, 144564, 180705, 240940, 244382, 361410, 366573, 488764, 610955, 722820, 733146, 855337, 1221910, 1466292, 1710674, 1832865, 2443820, 2566011, 3421348, 3665730, 4276685, 5132022, 7331460, 8553370, 10264044, 12830055, 17106740, 25660110, 51320220]

約数ペア:

[(1, 51320220), (2, 25660110), (3, 17106740), (4, 12830055), (5, 10264044), (6, 8553370), (7, 7331460), (10, 5132022), (12, 4276685), (14, 3665730), (15, 3421348), (20, 2566011), (21, 2443820), (28, 1832865), (30, 1710674), (35, 1466292), (42, 1221910), (60, 855337), (70, 733146), (71, 722820), (84, 610955), (105, 488764), (140, 366573), (142, 361410), (210, 244382), (213, 240940), (284, 180705), (355, 144564), (420, 122191), (426, 120470), (497, 103260), (710, 72282), (852, 60235), (994, 51630), (1065, 48188), (1420, 36141), (1491, 34420), (1721, 29820), (1988, 25815), (2130, 24094), (2485, 20652), (2982, 17210), (3442, 14910), (4260, 12047), (4970, 10326), (5163, 9940), (5964, 8605), (6884, 7455)]