278857440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{983}}^1$

素因数の和:1201

約数の個数: 144

約数和(自身を含む): 957404448

約数和(自身を除く): 678547008

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 197, 240, 288, 360, 394, 480, 591, 720, 788, 983, 985, 1182, 1440, 1576, 1773, 1966, 1970, 2364, 2949, 2955, 3152, 3546, 3932, 3940, 4728, 4915, 5898, 5910, 6304, 7092, 7864, 7880, 8847, 8865, 9456, 9830, 11796, 11820, 14184, 14745, 15728, 15760, 17694, 17730, 18912, 19660, 23592, 23640, 28368, 29490, 31456, 31520, 35388, 35460, 39320, 44235, 47184, 47280, 56736, 58980, 70776, 70920, 78640, 88470, 94368, 94560, 117960, 141552, 141840, 157280, 176940, 193651, 235920, 283104, 283680, 353880, 387302, 471840, 580953, 707760, 774604, 968255, 1161906, 1415520, 1549208, 1742859, 1936510, 2323812, 2904765, 3098416, 3485718, 3873020, 4647624, 5809530, 6196832, 6971436, 7746040, 8714295, 9295248, 11619060, 13942872, 15492080, 17428590, 18590496, 23238120, 27885744, 30984160, 34857180, 46476240, 55771488, 69714360, 92952480, 139428720, 278857440]

約数ペア:

[(1, 278857440), (2, 139428720), (3, 92952480), (4, 69714360), (5, 55771488), (6, 46476240), (8, 34857180), (9, 30984160), (10, 27885744), (12, 23238120), (15, 18590496), (16, 17428590), (18, 15492080), (20, 13942872), (24, 11619060), (30, 9295248), (32, 8714295), (36, 7746040), (40, 6971436), (45, 6196832), (48, 5809530), (60, 4647624), (72, 3873020), (80, 3485718), (90, 3098416), (96, 2904765), (120, 2323812), (144, 1936510), (160, 1742859), (180, 1549208), (197, 1415520), (240, 1161906), (288, 968255), (360, 774604), (394, 707760), (480, 580953), (591, 471840), (720, 387302), (788, 353880), (983, 283680), (985, 283104), (1182, 235920), (1440, 193651), (1576, 176940), (1773, 157280), (1966, 141840), (1970, 141552), (2364, 117960), (2949, 94560), (2955, 94368), (3152, 88470), (3546, 78640), (3932, 70920), (3940, 70776), (4728, 58980), (4915, 56736), (5898, 47280), (5910, 47184), (6304, 44235), (7092, 39320), (7864, 35460), (7880, 35388), (8847, 31520), (8865, 31456), (9456, 29490), (9830, 28368), (11796, 23640), (11820, 23592), (14184, 19660), (14745, 18912), (15728, 17730), (15760, 17694)]