81048120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:309

約数の個数: 128

約数和(自身を含む): 252806400

約数和(自身を除く): 171758280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 113, 120, 129, 139, 172, 215, 226, 258, 278, 339, 344, 417, 430, 452, 516, 556, 565, 645, 678, 695, 834, 860, 904, 1032, 1112, 1130, 1290, 1356, 1390, 1668, 1695, 1720, 2085, 2260, 2580, 2712, 2780, 3336, 3390, 4170, 4520, 4859, 5160, 5560, 5977, 6780, 8340, 9718, 11954, 13560, 14577, 15707, 16680, 17931, 19436, 23908, 24295, 29154, 29885, 31414, 35862, 38872, 47121, 47816, 48590, 58308, 59770, 62828, 71724, 72885, 78535, 89655, 94242, 97180, 116616, 119540, 125656, 143448, 145770, 157070, 179310, 188484, 194360, 235605, 239080, 291540, 314140, 358620, 376968, 471210, 583080, 628280, 675401, 717240, 942420, 1350802, 1884840, 2026203, 2701604, 3377005, 4052406, 5403208, 6754010, 8104812, 10131015, 13508020, 16209624, 20262030, 27016040, 40524060, 81048120]

約数ペア:

[(1, 81048120), (2, 40524060), (3, 27016040), (4, 20262030), (5, 16209624), (6, 13508020), (8, 10131015), (10, 8104812), (12, 6754010), (15, 5403208), (20, 4052406), (24, 3377005), (30, 2701604), (40, 2026203), (43, 1884840), (60, 1350802), (86, 942420), (113, 717240), (120, 675401), (129, 628280), (139, 583080), (172, 471210), (215, 376968), (226, 358620), (258, 314140), (278, 291540), (339, 239080), (344, 235605), (417, 194360), (430, 188484), (452, 179310), (516, 157070), (556, 145770), (565, 143448), (645, 125656), (678, 119540), (695, 116616), (834, 97180), (860, 94242), (904, 89655), (1032, 78535), (1112, 72885), (1130, 71724), (1290, 62828), (1356, 59770), (1390, 58308), (1668, 48590), (1695, 47816), (1720, 47121), (2085, 38872), (2260, 35862), (2580, 31414), (2712, 29885), (2780, 29154), (3336, 24295), (3390, 23908), (4170, 19436), (4520, 17931), (4859, 16680), (5160, 15707), (5560, 14577), (5977, 13560), (6780, 11954), (8340, 9718)]