84871980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:344

約数の個数: 144

約数和(自身を含む): 271252800

約数和(自身を除く): 186380820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 71, 87, 90, 116, 142, 145, 174, 180, 213, 229, 261, 284, 290, 348, 355, 426, 435, 458, 522, 580, 639, 687, 710, 852, 870, 916, 1044, 1065, 1145, 1278, 1305, 1374, 1420, 1740, 2059, 2061, 2130, 2290, 2556, 2610, 2748, 3195, 3435, 4118, 4122, 4260, 4580, 5220, 6177, 6390, 6641, 6870, 8236, 8244, 10295, 10305, 12354, 12780, 13282, 13740, 16259, 18531, 19923, 20590, 20610, 24708, 26564, 30885, 32518, 33205, 37062, 39846, 41180, 41220, 48777, 59769, 61770, 65036, 66410, 74124, 79692, 81295, 92655, 97554, 99615, 119538, 123540, 132820, 146331, 162590, 185310, 195108, 199230, 239076, 243885, 292662, 298845, 325180, 370620, 398460, 471511, 487770, 585324, 597690, 731655, 943022, 975540, 1195380, 1414533, 1463310, 1886044, 2357555, 2829066, 2926620, 4243599, 4715110, 5658132, 7072665, 8487198, 9430220, 14145330, 16974396, 21217995, 28290660, 42435990, 84871980]

約数ペア:

[(1, 84871980), (2, 42435990), (3, 28290660), (4, 21217995), (5, 16974396), (6, 14145330), (9, 9430220), (10, 8487198), (12, 7072665), (15, 5658132), (18, 4715110), (20, 4243599), (29, 2926620), (30, 2829066), (36, 2357555), (45, 1886044), (58, 1463310), (60, 1414533), (71, 1195380), (87, 975540), (90, 943022), (116, 731655), (142, 597690), (145, 585324), (174, 487770), (180, 471511), (213, 398460), (229, 370620), (261, 325180), (284, 298845), (290, 292662), (348, 243885), (355, 239076), (426, 199230), (435, 195108), (458, 185310), (522, 162590), (580, 146331), (639, 132820), (687, 123540), (710, 119538), (852, 99615), (870, 97554), (916, 92655), (1044, 81295), (1065, 79692), (1145, 74124), (1278, 66410), (1305, 65036), (1374, 61770), (1420, 59769), (1740, 48777), (2059, 41220), (2061, 41180), (2130, 39846), (2290, 37062), (2556, 33205), (2610, 32518), (2748, 30885), (3195, 26564), (3435, 24708), (4118, 20610), (4122, 20590), (4260, 19923), (4580, 18531), (5220, 16259), (6177, 13740), (6390, 13282), (6641, 12780), (6870, 12354), (8236, 10305), (8244, 10295)]