287798280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31147}}^1$

素因数の和:31179

約数の個数: 128

約数和(自身を含む): 1076474880

約数和(自身を除く): 788676600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 3080, 4620, 9240, 31147, 62294, 93441, 124588, 155735, 186882, 218029, 249176, 311470, 342617, 373764, 436058, 467205, 622940, 654087, 685234, 747528, 872116, 934410, 1027851, 1090145, 1245880, 1308174, 1370468, 1713085, 1744232, 1868820, 2055702, 2180290, 2398319, 2616348, 2740936, 3270435, 3426170, 3737640, 4111404, 4360580, 4796638, 5139255, 5232696, 6540870, 6852340, 7194957, 8222808, 8721160, 9593276, 10278510, 11991595, 13081740, 13704680, 14389914, 19186552, 20557020, 23983190, 26163480, 28779828, 35974785, 41114040, 47966380, 57559656, 71949570, 95932760, 143899140, 287798280]

約数ペア:

[(1, 287798280), (2, 143899140), (3, 95932760), (4, 71949570), (5, 57559656), (6, 47966380), (7, 41114040), (8, 35974785), (10, 28779828), (11, 26163480), (12, 23983190), (14, 20557020), (15, 19186552), (20, 14389914), (21, 13704680), (22, 13081740), (24, 11991595), (28, 10278510), (30, 9593276), (33, 8721160), (35, 8222808), (40, 7194957), (42, 6852340), (44, 6540870), (55, 5232696), (56, 5139255), (60, 4796638), (66, 4360580), (70, 4111404), (77, 3737640), (84, 3426170), (88, 3270435), (105, 2740936), (110, 2616348), (120, 2398319), (132, 2180290), (140, 2055702), (154, 1868820), (165, 1744232), (168, 1713085), (210, 1370468), (220, 1308174), (231, 1245880), (264, 1090145), (280, 1027851), (308, 934410), (330, 872116), (385, 747528), (420, 685234), (440, 654087), (462, 622940), (616, 467205), (660, 436058), (770, 373764), (840, 342617), (924, 311470), (1155, 249176), (1320, 218029), (1540, 186882), (1848, 155735), (2310, 124588), (3080, 93441), (4620, 62294), (9240, 31147)]