51501680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 125884800

約数和(自身を除く): 74383120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 79, 80, 116, 145, 158, 232, 281, 290, 316, 395, 464, 562, 580, 632, 790, 1124, 1160, 1264, 1405, 1580, 2248, 2291, 2320, 2810, 3160, 4496, 4582, 5620, 6320, 8149, 9164, 11240, 11455, 16298, 18328, 22199, 22480, 22910, 32596, 36656, 40745, 44398, 45820, 65192, 81490, 88796, 91640, 110995, 130384, 162980, 177592, 183280, 221990, 325960, 355184, 443980, 643771, 651920, 887960, 1287542, 1775920, 2575084, 3218855, 5150168, 6437710, 10300336, 12875420, 25750840, 51501680]

約数ペア:

[(1, 51501680), (2, 25750840), (4, 12875420), (5, 10300336), (8, 6437710), (10, 5150168), (16, 3218855), (20, 2575084), (29, 1775920), (40, 1287542), (58, 887960), (79, 651920), (80, 643771), (116, 443980), (145, 355184), (158, 325960), (232, 221990), (281, 183280), (290, 177592), (316, 162980), (395, 130384), (464, 110995), (562, 91640), (580, 88796), (632, 81490), (790, 65192), (1124, 45820), (1160, 44398), (1264, 40745), (1405, 36656), (1580, 32596), (2248, 22910), (2291, 22480), (2320, 22199), (2810, 18328), (3160, 16298), (4496, 11455), (4582, 11240), (5620, 9164), (6320, 8149)]