81045000

素因数分解:

$2^3\times 3^2\times 5^4\times {\mathrm{1801}}^1$

素因数の和:1833

約数の個数: 120

約数和(自身を含む): 274435590

約数和(自身を除く): 193390590

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 450, 500, 600, 625, 750, 900, 1000, 1125, 1250, 1500, 1800, 1801, 1875, 2250, 2500, 3000, 3602, 3750, 4500, 5000, 5403, 5625, 7204, 7500, 9000, 9005, 10806, 11250, 14408, 15000, 16209, 18010, 21612, 22500, 27015, 32418, 36020, 43224, 45000, 45025, 54030, 64836, 72040, 81045, 90050, 108060, 129672, 135075, 162090, 180100, 216120, 225125, 270150, 324180, 360200, 405225, 450250, 540300, 648360, 675375, 810450, 900500, 1080600, 1125625, 1350750, 1620900, 1801000, 2026125, 2251250, 2701500, 3241800, 3376875, 4052250, 4502500, 5403000, 6753750, 8104500, 9005000, 10130625, 13507500, 16209000, 20261250, 27015000, 40522500, 81045000]

約数ペア:

[(1, 81045000), (2, 40522500), (3, 27015000), (4, 20261250), (5, 16209000), (6, 13507500), (8, 10130625), (9, 9005000), (10, 8104500), (12, 6753750), (15, 5403000), (18, 4502500), (20, 4052250), (24, 3376875), (25, 3241800), (30, 2701500), (36, 2251250), (40, 2026125), (45, 1801000), (50, 1620900), (60, 1350750), (72, 1125625), (75, 1080600), (90, 900500), (100, 810450), (120, 675375), (125, 648360), (150, 540300), (180, 450250), (200, 405225), (225, 360200), (250, 324180), (300, 270150), (360, 225125), (375, 216120), (450, 180100), (500, 162090), (600, 135075), (625, 129672), (750, 108060), (900, 90050), (1000, 81045), (1125, 72040), (1250, 64836), (1500, 54030), (1800, 45025), (1801, 45000), (1875, 43224), (2250, 36020), (2500, 32418), (3000, 27015), (3602, 22500), (3750, 21612), (4500, 18010), (5000, 16209), (5403, 15000), (5625, 14408), (7204, 11250), (7500, 10806), (9000, 9005)]