81044640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2447}}^1$

素因数の和:2491

約数の個数: 144

約数和(自身を含む): 288707328

約数和(自身を除く): 207662688

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 207, 230, 240, 276, 288, 345, 360, 368, 414, 460, 480, 552, 690, 720, 736, 828, 920, 1035, 1104, 1380, 1440, 1656, 1840, 2070, 2208, 2447, 2760, 3312, 3680, 4140, 4894, 5520, 6624, 7341, 8280, 9788, 11040, 12235, 14682, 16560, 19576, 22023, 24470, 29364, 33120, 36705, 39152, 44046, 48940, 56281, 58728, 73410, 78304, 88092, 97880, 110115, 112562, 117456, 146820, 168843, 176184, 195760, 220230, 225124, 234912, 281405, 293640, 337686, 352368, 391520, 440460, 450248, 506529, 562810, 587280, 675372, 704736, 844215, 880920, 900496, 1013058, 1125620, 1174560, 1350744, 1688430, 1761840, 1800992, 2026116, 2251240, 2532645, 2701488, 3376860, 3523680, 4052232, 4502480, 5065290, 5402976, 6753720, 8104464, 9004960, 10130580, 13507440, 16208928, 20261160, 27014880, 40522320, 81044640]

約数ペア:

[(1, 81044640), (2, 40522320), (3, 27014880), (4, 20261160), (5, 16208928), (6, 13507440), (8, 10130580), (9, 9004960), (10, 8104464), (12, 6753720), (15, 5402976), (16, 5065290), (18, 4502480), (20, 4052232), (23, 3523680), (24, 3376860), (30, 2701488), (32, 2532645), (36, 2251240), (40, 2026116), (45, 1800992), (46, 1761840), (48, 1688430), (60, 1350744), (69, 1174560), (72, 1125620), (80, 1013058), (90, 900496), (92, 880920), (96, 844215), (115, 704736), (120, 675372), (138, 587280), (144, 562810), (160, 506529), (180, 450248), (184, 440460), (207, 391520), (230, 352368), (240, 337686), (276, 293640), (288, 281405), (345, 234912), (360, 225124), (368, 220230), (414, 195760), (460, 176184), (480, 168843), (552, 146820), (690, 117456), (720, 112562), (736, 110115), (828, 97880), (920, 88092), (1035, 78304), (1104, 73410), (1380, 58728), (1440, 56281), (1656, 48940), (1840, 44046), (2070, 39152), (2208, 36705), (2447, 33120), (2760, 29364), (3312, 24470), (3680, 22023), (4140, 19576), (4894, 16560), (5520, 14682), (6624, 12235), (7341, 11040), (8280, 9788)]