51359560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 139991040

約数和(自身を除く): 88631480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 61, 62, 70, 97, 122, 124, 140, 155, 194, 217, 244, 248, 280, 305, 310, 388, 427, 434, 485, 488, 610, 620, 679, 776, 854, 868, 970, 1085, 1220, 1240, 1358, 1708, 1736, 1891, 1940, 2135, 2170, 2440, 2716, 3007, 3395, 3416, 3782, 3880, 4270, 4340, 5432, 5917, 6014, 6790, 7564, 8540, 8680, 9455, 11834, 12028, 13237, 13580, 15035, 15128, 17080, 18910, 21049, 23668, 24056, 26474, 27160, 29585, 30070, 37820, 41419, 42098, 47336, 52948, 59170, 60140, 66185, 75640, 82838, 84196, 105245, 105896, 118340, 120280, 132370, 165676, 168392, 183427, 207095, 210490, 236680, 264740, 331352, 366854, 414190, 420980, 529480, 733708, 828380, 841960, 917135, 1283989, 1467416, 1656760, 1834270, 2567978, 3668540, 5135956, 6419945, 7337080, 10271912, 12839890, 25679780, 51359560]

約数ペア:

[(1, 51359560), (2, 25679780), (4, 12839890), (5, 10271912), (7, 7337080), (8, 6419945), (10, 5135956), (14, 3668540), (20, 2567978), (28, 1834270), (31, 1656760), (35, 1467416), (40, 1283989), (56, 917135), (61, 841960), (62, 828380), (70, 733708), (97, 529480), (122, 420980), (124, 414190), (140, 366854), (155, 331352), (194, 264740), (217, 236680), (244, 210490), (248, 207095), (280, 183427), (305, 168392), (310, 165676), (388, 132370), (427, 120280), (434, 118340), (485, 105896), (488, 105245), (610, 84196), (620, 82838), (679, 75640), (776, 66185), (854, 60140), (868, 59170), (970, 52948), (1085, 47336), (1220, 42098), (1240, 41419), (1358, 37820), (1708, 30070), (1736, 29585), (1891, 27160), (1940, 26474), (2135, 24056), (2170, 23668), (2440, 21049), (2716, 18910), (3007, 17080), (3395, 15128), (3416, 15035), (3782, 13580), (3880, 13237), (4270, 12028), (4340, 11834), (5432, 9455), (5917, 8680), (6014, 8540), (6790, 7564)]