25566660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:322

約数の個数: 144

約数和(自身を含む): 89945856

約数和(自身を除く): 64379196

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 103, 105, 126, 140, 180, 197, 206, 210, 252, 309, 315, 394, 412, 420, 515, 591, 618, 630, 721, 788, 927, 985, 1030, 1182, 1236, 1260, 1379, 1442, 1545, 1773, 1854, 1970, 2060, 2163, 2364, 2758, 2884, 2955, 3090, 3546, 3605, 3708, 3940, 4137, 4326, 4635, 5516, 5910, 6180, 6489, 6895, 7092, 7210, 8274, 8652, 8865, 9270, 10815, 11820, 12411, 12978, 13790, 14420, 16548, 17730, 18540, 20291, 20685, 21630, 24822, 25956, 27580, 32445, 35460, 40582, 41370, 43260, 49644, 60873, 62055, 64890, 81164, 82740, 101455, 121746, 124110, 129780, 142037, 182619, 202910, 243492, 248220, 284074, 304365, 365238, 405820, 426111, 568148, 608730, 710185, 730476, 852222, 913095, 1217460, 1278333, 1420370, 1704444, 1826190, 2130555, 2556666, 2840740, 3652380, 4261110, 5113332, 6391665, 8522220, 12783330, 25566660]

約数ペア:

[(1, 25566660), (2, 12783330), (3, 8522220), (4, 6391665), (5, 5113332), (6, 4261110), (7, 3652380), (9, 2840740), (10, 2556666), (12, 2130555), (14, 1826190), (15, 1704444), (18, 1420370), (20, 1278333), (21, 1217460), (28, 913095), (30, 852222), (35, 730476), (36, 710185), (42, 608730), (45, 568148), (60, 426111), (63, 405820), (70, 365238), (84, 304365), (90, 284074), (103, 248220), (105, 243492), (126, 202910), (140, 182619), (180, 142037), (197, 129780), (206, 124110), (210, 121746), (252, 101455), (309, 82740), (315, 81164), (394, 64890), (412, 62055), (420, 60873), (515, 49644), (591, 43260), (618, 41370), (630, 40582), (721, 35460), (788, 32445), (927, 27580), (985, 25956), (1030, 24822), (1182, 21630), (1236, 20685), (1260, 20291), (1379, 18540), (1442, 17730), (1545, 16548), (1773, 14420), (1854, 13790), (1970, 12978), (2060, 12411), (2163, 11820), (2364, 10815), (2758, 9270), (2884, 8865), (2955, 8652), (3090, 8274), (3546, 7210), (3605, 7092), (3708, 6895), (3940, 6489), (4137, 6180), (4326, 5910), (4635, 5516)]