161720400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:254

約数の個数: 240

約数和(自身を含む): 561839040

約数和(自身を除く): 400118640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 25, 30, 38, 40, 41, 48, 50, 57, 60, 75, 76, 80, 82, 95, 100, 114, 120, 123, 150, 152, 164, 173, 190, 200, 205, 228, 240, 246, 285, 300, 304, 328, 346, 380, 400, 410, 456, 475, 492, 519, 570, 600, 615, 656, 692, 760, 779, 820, 865, 912, 950, 984, 1025, 1038, 1140, 1200, 1230, 1384, 1425, 1520, 1558, 1640, 1730, 1900, 1968, 2050, 2076, 2280, 2337, 2460, 2595, 2768, 2850, 3075, 3116, 3280, 3287, 3460, 3800, 3895, 4100, 4152, 4325, 4560, 4674, 4920, 5190, 5700, 6150, 6232, 6574, 6920, 7093, 7600, 7790, 8200, 8304, 8650, 9348, 9840, 9861, 10380, 11400, 11685, 12300, 12464, 12975, 13148, 13840, 14186, 15580, 16400, 16435, 17300, 18696, 19475, 19722, 20760, 21279, 22800, 23370, 24600, 25950, 26296, 28372, 31160, 32870, 34600, 35465, 37392, 38950, 39444, 41520, 42558, 46740, 49200, 49305, 51900, 52592, 56744, 58425, 62320, 65740, 69200, 70930, 77900, 78888, 82175, 85116, 93480, 98610, 103800, 106395, 113488, 116850, 131480, 134767, 141860, 155800, 157776, 164350, 170232, 177325, 186960, 197220, 207600, 212790, 233700, 246525, 262960, 269534, 283720, 311600, 328700, 340464, 354650, 394440, 404301, 425580, 467400, 493050, 531975, 539068, 567440, 657400, 673835, 709300, 788880, 808602, 851160, 934800, 986100, 1063950, 1078136, 1314800, 1347670, 1418600, 1617204, 1702320, 1972200, 2021505, 2127900, 2156272, 2695340, 2837200, 3234408, 3369175, 3944400, 4043010, 4255800, 5390680, 6468816, 6738350, 8086020, 8511600, 10107525, 10781360, 13476700, 16172040, 20215050, 26953400, 32344080, 40430100, 53906800, 80860200, 161720400]

約数ペア:

[(1, 161720400), (2, 80860200), (3, 53906800), (4, 40430100), (5, 32344080), (6, 26953400), (8, 20215050), (10, 16172040), (12, 13476700), (15, 10781360), (16, 10107525), (19, 8511600), (20, 8086020), (24, 6738350), (25, 6468816), (30, 5390680), (38, 4255800), (40, 4043010), (41, 3944400), (48, 3369175), (50, 3234408), (57, 2837200), (60, 2695340), (75, 2156272), (76, 2127900), (80, 2021505), (82, 1972200), (95, 1702320), (100, 1617204), (114, 1418600), (120, 1347670), (123, 1314800), (150, 1078136), (152, 1063950), (164, 986100), (173, 934800), (190, 851160), (200, 808602), (205, 788880), (228, 709300), (240, 673835), (246, 657400), (285, 567440), (300, 539068), (304, 531975), (328, 493050), (346, 467400), (380, 425580), (400, 404301), (410, 394440), (456, 354650), (475, 340464), (492, 328700), (519, 311600), (570, 283720), (600, 269534), (615, 262960), (656, 246525), (692, 233700), (760, 212790), (779, 207600), (820, 197220), (865, 186960), (912, 177325), (950, 170232), (984, 164350), (1025, 157776), (1038, 155800), (1140, 141860), (1200, 134767), (1230, 131480), (1384, 116850), (1425, 113488), (1520, 106395), (1558, 103800), (1640, 98610), (1730, 93480), (1900, 85116), (1968, 82175), (2050, 78888), (2076, 77900), (2280, 70930), (2337, 69200), (2460, 65740), (2595, 62320), (2768, 58425), (2850, 56744), (3075, 52592), (3116, 51900), (3280, 49305), (3287, 49200), (3460, 46740), (3800, 42558), (3895, 41520), (4100, 39444), (4152, 38950), (4325, 37392), (4560, 35465), (4674, 34600), (4920, 32870), (5190, 31160), (5700, 28372), (6150, 26296), (6232, 25950), (6574, 24600), (6920, 23370), (7093, 22800), (7600, 21279), (7790, 20760), (8200, 19722), (8304, 19475), (8650, 18696), (9348, 17300), (9840, 16435), (9861, 16400), (10380, 15580), (11400, 14186), (11685, 13840), (12300, 13148), (12464, 12975)]