81670120

素因数分解:

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

素因数の和:243

約数の個数: 96

約数和(自身を含む): 219041280

約数和(自身を除く): 137371160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 97, 124, 140, 155, 194, 217, 248, 280, 310, 388, 434, 485, 620, 679, 776, 868, 970, 1085, 1240, 1358, 1736, 1940, 2170, 2716, 3007, 3395, 3880, 4340, 5432, 6014, 6790, 8680, 9409, 12028, 13580, 15035, 18818, 21049, 24056, 27160, 30070, 37636, 42098, 47045, 60140, 65863, 75272, 84196, 94090, 105245, 120280, 131726, 168392, 188180, 210490, 263452, 291679, 329315, 376360, 420980, 526904, 583358, 658630, 841960, 1166716, 1317260, 1458395, 2041753, 2333432, 2634520, 2916790, 4083506, 5833580, 8167012, 10208765, 11667160, 16334024, 20417530, 40835060, 81670120]

約数ペア:

[(1, 81670120), (2, 40835060), (4, 20417530), (5, 16334024), (7, 11667160), (8, 10208765), (10, 8167012), (14, 5833580), (20, 4083506), (28, 2916790), (31, 2634520), (35, 2333432), (40, 2041753), (56, 1458395), (62, 1317260), (70, 1166716), (97, 841960), (124, 658630), (140, 583358), (155, 526904), (194, 420980), (217, 376360), (248, 329315), (280, 291679), (310, 263452), (388, 210490), (434, 188180), (485, 168392), (620, 131726), (679, 120280), (776, 105245), (868, 94090), (970, 84196), (1085, 75272), (1240, 65863), (1358, 60140), (1736, 47045), (1940, 42098), (2170, 37636), (2716, 30070), (3007, 27160), (3395, 24056), (3880, 21049), (4340, 18818), (5432, 15035), (6014, 13580), (6790, 12028), (8680, 9409)]