81742500

素因数分解:

$2^2\times 3^3\times 5^4\times 7^1\times {\mathrm{173}}^1$

素因数の和:213

約数の個数: 240

約数和(自身を含む): 304402560

約数和(自身を除く): 222660060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 84, 90, 100, 105, 108, 125, 126, 135, 140, 150, 173, 175, 180, 189, 210, 225, 250, 252, 270, 300, 315, 346, 350, 375, 378, 420, 450, 500, 519, 525, 540, 625, 630, 675, 692, 700, 750, 756, 865, 875, 900, 945, 1038, 1050, 1125, 1211, 1250, 1260, 1350, 1500, 1557, 1575, 1730, 1750, 1875, 1890, 2076, 2100, 2250, 2422, 2500, 2595, 2625, 2700, 3114, 3150, 3375, 3460, 3500, 3633, 3750, 3780, 4325, 4375, 4500, 4671, 4725, 4844, 5190, 5250, 5625, 6055, 6228, 6300, 6750, 7266, 7500, 7785, 7875, 8650, 8750, 9342, 9450, 10380, 10500, 10899, 11250, 12110, 12975, 13125, 13500, 14532, 15570, 15750, 16875, 17300, 17500, 18165, 18684, 18900, 21625, 21798, 22500, 23355, 23625, 24220, 25950, 26250, 30275, 31140, 31500, 32697, 33750, 36330, 38925, 39375, 43250, 43596, 46710, 47250, 51900, 52500, 54495, 60550, 64875, 65394, 67500, 72660, 77850, 78750, 86500, 90825, 93420, 94500, 108125, 108990, 116775, 118125, 121100, 129750, 130788, 151375, 155700, 157500, 163485, 181650, 194625, 216250, 217980, 233550, 236250, 259500, 272475, 302750, 324375, 326970, 363300, 389250, 432500, 454125, 467100, 472500, 544950, 583875, 605500, 648750, 653940, 756875, 778500, 817425, 908250, 973125, 1089900, 1167750, 1297500, 1362375, 1513750, 1634850, 1816500, 1946250, 2270625, 2335500, 2724750, 2919375, 3027500, 3269700, 3892500, 4087125, 4541250, 5449500, 5838750, 6811875, 8174250, 9082500, 11677500, 13623750, 16348500, 20435625, 27247500, 40871250, 81742500]

約数ペア:

[(1, 81742500), (2, 40871250), (3, 27247500), (4, 20435625), (5, 16348500), (6, 13623750), (7, 11677500), (9, 9082500), (10, 8174250), (12, 6811875), (14, 5838750), (15, 5449500), (18, 4541250), (20, 4087125), (21, 3892500), (25, 3269700), (27, 3027500), (28, 2919375), (30, 2724750), (35, 2335500), (36, 2270625), (42, 1946250), (45, 1816500), (50, 1634850), (54, 1513750), (60, 1362375), (63, 1297500), (70, 1167750), (75, 1089900), (84, 973125), (90, 908250), (100, 817425), (105, 778500), (108, 756875), (125, 653940), (126, 648750), (135, 605500), (140, 583875), (150, 544950), (173, 472500), (175, 467100), (180, 454125), (189, 432500), (210, 389250), (225, 363300), (250, 326970), (252, 324375), (270, 302750), (300, 272475), (315, 259500), (346, 236250), (350, 233550), (375, 217980), (378, 216250), (420, 194625), (450, 181650), (500, 163485), (519, 157500), (525, 155700), (540, 151375), (625, 130788), (630, 129750), (675, 121100), (692, 118125), (700, 116775), (750, 108990), (756, 108125), (865, 94500), (875, 93420), (900, 90825), (945, 86500), (1038, 78750), (1050, 77850), (1125, 72660), (1211, 67500), (1250, 65394), (1260, 64875), (1350, 60550), (1500, 54495), (1557, 52500), (1575, 51900), (1730, 47250), (1750, 46710), (1875, 43596), (1890, 43250), (2076, 39375), (2100, 38925), (2250, 36330), (2422, 33750), (2500, 32697), (2595, 31500), (2625, 31140), (2700, 30275), (3114, 26250), (3150, 25950), (3375, 24220), (3460, 23625), (3500, 23355), (3633, 22500), (3750, 21798), (3780, 21625), (4325, 18900), (4375, 18684), (4500, 18165), (4671, 17500), (4725, 17300), (4844, 16875), (5190, 15750), (5250, 15570), (5625, 14532), (6055, 13500), (6228, 13125), (6300, 12975), (6750, 12110), (7266, 11250), (7500, 10899), (7785, 10500), (7875, 10380), (8650, 9450), (8750, 9342)]