81983580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:228

約数の個数: 192

約数和(自身を含む): 278691840

約数和(自身を除く): 196708260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 53, 58, 60, 70, 84, 87, 105, 106, 116, 127, 140, 145, 159, 174, 203, 210, 212, 254, 265, 290, 318, 348, 371, 381, 406, 420, 435, 508, 530, 580, 609, 635, 636, 742, 762, 795, 812, 870, 889, 1015, 1060, 1113, 1218, 1270, 1484, 1524, 1537, 1590, 1740, 1778, 1855, 1905, 2030, 2226, 2436, 2540, 2667, 3045, 3074, 3180, 3556, 3683, 3710, 3810, 4060, 4445, 4452, 4611, 5334, 5565, 6090, 6148, 6731, 7366, 7420, 7620, 7685, 8890, 9222, 10668, 10759, 11049, 11130, 12180, 13335, 13462, 14732, 15370, 17780, 18415, 18444, 20193, 21518, 22098, 22260, 23055, 25781, 26670, 26924, 30740, 32277, 33655, 36830, 40386, 43036, 44196, 46110, 47117, 51562, 53340, 53795, 55245, 64554, 67310, 73660, 77343, 80772, 92220, 94234, 100965, 103124, 107590, 110490, 128905, 129108, 134620, 141351, 154686, 161385, 188468, 195199, 201930, 215180, 220980, 235585, 257810, 282702, 309372, 322770, 386715, 390398, 403860, 471170, 515620, 565404, 585597, 645540, 706755, 773430, 780796, 942340, 975995, 1171194, 1366393, 1413510, 1546860, 1951990, 2342388, 2732786, 2827020, 2927985, 3903980, 4099179, 5465572, 5855970, 6831965, 8198358, 11711940, 13663930, 16396716, 20495895, 27327860, 40991790, 81983580]

約数ペア:

[(1, 81983580), (2, 40991790), (3, 27327860), (4, 20495895), (5, 16396716), (6, 13663930), (7, 11711940), (10, 8198358), (12, 6831965), (14, 5855970), (15, 5465572), (20, 4099179), (21, 3903980), (28, 2927985), (29, 2827020), (30, 2732786), (35, 2342388), (42, 1951990), (53, 1546860), (58, 1413510), (60, 1366393), (70, 1171194), (84, 975995), (87, 942340), (105, 780796), (106, 773430), (116, 706755), (127, 645540), (140, 585597), (145, 565404), (159, 515620), (174, 471170), (203, 403860), (210, 390398), (212, 386715), (254, 322770), (265, 309372), (290, 282702), (318, 257810), (348, 235585), (371, 220980), (381, 215180), (406, 201930), (420, 195199), (435, 188468), (508, 161385), (530, 154686), (580, 141351), (609, 134620), (635, 129108), (636, 128905), (742, 110490), (762, 107590), (795, 103124), (812, 100965), (870, 94234), (889, 92220), (1015, 80772), (1060, 77343), (1113, 73660), (1218, 67310), (1270, 64554), (1484, 55245), (1524, 53795), (1537, 53340), (1590, 51562), (1740, 47117), (1778, 46110), (1855, 44196), (1905, 43036), (2030, 40386), (2226, 36830), (2436, 33655), (2540, 32277), (2667, 30740), (3045, 26924), (3074, 26670), (3180, 25781), (3556, 23055), (3683, 22260), (3710, 22098), (3810, 21518), (4060, 20193), (4445, 18444), (4452, 18415), (4611, 17780), (5334, 15370), (5565, 14732), (6090, 13462), (6148, 13335), (6731, 12180), (7366, 11130), (7420, 11049), (7620, 10759), (7685, 10668), (8890, 9222)]