81979560

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5839}}^1$

素因数の和:5872

約数の個数: 128

約数和(自身を含む): 294336000

約数和(自身を除く): 212356440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1560, 1755, 2340, 2808, 3510, 4680, 5839, 7020, 11678, 14040, 17517, 23356, 29195, 35034, 46712, 52551, 58390, 70068, 75907, 87585, 105102, 116780, 140136, 151814, 157653, 175170, 210204, 227721, 233560, 262755, 303628, 315306, 350340, 379535, 420408, 455442, 525510, 607256, 630612, 683163, 700680, 759070, 788265, 910884, 1051020, 1138605, 1261224, 1366326, 1518140, 1576530, 1821768, 2049489, 2102040, 2277210, 2732652, 3036280, 3153060, 3415815, 4098978, 4554420, 5465304, 6306120, 6831630, 8197956, 9108840, 10247445, 13663260, 16395912, 20494890, 27326520, 40989780, 81979560]

約数ペア:

[(1, 81979560), (2, 40989780), (3, 27326520), (4, 20494890), (5, 16395912), (6, 13663260), (8, 10247445), (9, 9108840), (10, 8197956), (12, 6831630), (13, 6306120), (15, 5465304), (18, 4554420), (20, 4098978), (24, 3415815), (26, 3153060), (27, 3036280), (30, 2732652), (36, 2277210), (39, 2102040), (40, 2049489), (45, 1821768), (52, 1576530), (54, 1518140), (60, 1366326), (65, 1261224), (72, 1138605), (78, 1051020), (90, 910884), (104, 788265), (108, 759070), (117, 700680), (120, 683163), (130, 630612), (135, 607256), (156, 525510), (180, 455442), (195, 420408), (216, 379535), (234, 350340), (260, 315306), (270, 303628), (312, 262755), (351, 233560), (360, 227721), (390, 210204), (468, 175170), (520, 157653), (540, 151814), (585, 140136), (702, 116780), (780, 105102), (936, 87585), (1080, 75907), (1170, 70068), (1404, 58390), (1560, 52551), (1755, 46712), (2340, 35034), (2808, 29195), (3510, 23356), (4680, 17517), (5839, 14040), (7020, 11678)]