81052920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:307

約数の個数: 256

約数和(自身を含む): 304819200

約数和(自身を除く): 223766280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 23, 24, 26, 27, 30, 36, 39, 40, 45, 46, 52, 54, 60, 65, 69, 72, 78, 90, 92, 104, 108, 115, 117, 120, 130, 135, 138, 156, 180, 184, 195, 207, 216, 230, 234, 251, 260, 270, 276, 299, 312, 345, 351, 360, 390, 414, 460, 468, 502, 520, 540, 552, 585, 598, 621, 690, 702, 753, 780, 828, 897, 920, 936, 1004, 1035, 1080, 1170, 1196, 1242, 1255, 1380, 1404, 1495, 1506, 1560, 1656, 1755, 1794, 2008, 2070, 2259, 2340, 2392, 2484, 2510, 2691, 2760, 2808, 2990, 3012, 3105, 3263, 3510, 3588, 3765, 4140, 4485, 4518, 4680, 4968, 5020, 5382, 5773, 5980, 6024, 6210, 6526, 6777, 7020, 7176, 7530, 8073, 8280, 8970, 9036, 9789, 10040, 10764, 11295, 11546, 11960, 12420, 13052, 13455, 13554, 14040, 15060, 16146, 16315, 17319, 17940, 18072, 19578, 21528, 22590, 23092, 24840, 26104, 26910, 27108, 28865, 29367, 30120, 32292, 32630, 33885, 34638, 35880, 39156, 40365, 45180, 46184, 48945, 51957, 53820, 54216, 57730, 58734, 64584, 65260, 67770, 69276, 75049, 78312, 80730, 86595, 88101, 90360, 97890, 103914, 107640, 115460, 117468, 130520, 135540, 138552, 146835, 150098, 155871, 161460, 173190, 176202, 195780, 207828, 225147, 230920, 234936, 259785, 271080, 293670, 300196, 311742, 322920, 346380, 352404, 375245, 391560, 415656, 440505, 450294, 519570, 587340, 600392, 623484, 675441, 692760, 704808, 750490, 779355, 881010, 900588, 1039140, 1125735, 1174680, 1246968, 1350882, 1500980, 1558710, 1762020, 1801176, 2026323, 2078280, 2251470, 2701764, 3001960, 3117420, 3377205, 3524040, 4052646, 4502940, 5403528, 6234840, 6754410, 8105292, 9005880, 10131615, 13508820, 16210584, 20263230, 27017640, 40526460, 81052920]

約数ペア:

[(1, 81052920), (2, 40526460), (3, 27017640), (4, 20263230), (5, 16210584), (6, 13508820), (8, 10131615), (9, 9005880), (10, 8105292), (12, 6754410), (13, 6234840), (15, 5403528), (18, 4502940), (20, 4052646), (23, 3524040), (24, 3377205), (26, 3117420), (27, 3001960), (30, 2701764), (36, 2251470), (39, 2078280), (40, 2026323), (45, 1801176), (46, 1762020), (52, 1558710), (54, 1500980), (60, 1350882), (65, 1246968), (69, 1174680), (72, 1125735), (78, 1039140), (90, 900588), (92, 881010), (104, 779355), (108, 750490), (115, 704808), (117, 692760), (120, 675441), (130, 623484), (135, 600392), (138, 587340), (156, 519570), (180, 450294), (184, 440505), (195, 415656), (207, 391560), (216, 375245), (230, 352404), (234, 346380), (251, 322920), (260, 311742), (270, 300196), (276, 293670), (299, 271080), (312, 259785), (345, 234936), (351, 230920), (360, 225147), (390, 207828), (414, 195780), (460, 176202), (468, 173190), (502, 161460), (520, 155871), (540, 150098), (552, 146835), (585, 138552), (598, 135540), (621, 130520), (690, 117468), (702, 115460), (753, 107640), (780, 103914), (828, 97890), (897, 90360), (920, 88101), (936, 86595), (1004, 80730), (1035, 78312), (1080, 75049), (1170, 69276), (1196, 67770), (1242, 65260), (1255, 64584), (1380, 58734), (1404, 57730), (1495, 54216), (1506, 53820), (1560, 51957), (1656, 48945), (1755, 46184), (1794, 45180), (2008, 40365), (2070, 39156), (2259, 35880), (2340, 34638), (2392, 33885), (2484, 32630), (2510, 32292), (2691, 30120), (2760, 29367), (2808, 28865), (2990, 27108), (3012, 26910), (3105, 26104), (3263, 24840), (3510, 23092), (3588, 22590), (3765, 21528), (4140, 19578), (4485, 18072), (4518, 17940), (4680, 17319), (4968, 16315), (5020, 16146), (5382, 15060), (5773, 14040), (5980, 13554), (6024, 13455), (6210, 13052), (6526, 12420), (6777, 11960), (7020, 11546), (7176, 11295), (7530, 10764), (8073, 10040), (8280, 9789), (8970, 9036)]