81450000

素因数分解:

$2^4\times 3^2\times 5^5\times {\mathrm{181}}^1$

素因数の和:220

約数の個数: 180

約数和(自身を含む): 286489476

約数和(自身を除く): 205039476

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 125, 144, 150, 180, 181, 200, 225, 240, 250, 300, 360, 362, 375, 400, 450, 500, 543, 600, 625, 720, 724, 750, 900, 905, 1000, 1086, 1125, 1200, 1250, 1448, 1500, 1629, 1800, 1810, 1875, 2000, 2172, 2250, 2500, 2715, 2896, 3000, 3125, 3258, 3600, 3620, 3750, 4344, 4500, 4525, 5000, 5430, 5625, 6000, 6250, 6516, 7240, 7500, 8145, 8688, 9000, 9050, 9375, 10000, 10860, 11250, 12500, 13032, 13575, 14480, 15000, 16290, 18000, 18100, 18750, 21720, 22500, 22625, 25000, 26064, 27150, 28125, 30000, 32580, 36200, 37500, 40725, 43440, 45000, 45250, 50000, 54300, 56250, 65160, 67875, 72400, 75000, 81450, 90000, 90500, 108600, 112500, 113125, 130320, 135750, 150000, 162900, 181000, 203625, 217200, 225000, 226250, 271500, 325800, 339375, 362000, 407250, 450000, 452500, 543000, 565625, 651600, 678750, 814500, 905000, 1018125, 1086000, 1131250, 1357500, 1629000, 1696875, 1810000, 2036250, 2262500, 2715000, 3258000, 3393750, 4072500, 4525000, 5090625, 5430000, 6787500, 8145000, 9050000, 10181250, 13575000, 16290000, 20362500, 27150000, 40725000, 81450000]

約数ペア:

[(1, 81450000), (2, 40725000), (3, 27150000), (4, 20362500), (5, 16290000), (6, 13575000), (8, 10181250), (9, 9050000), (10, 8145000), (12, 6787500), (15, 5430000), (16, 5090625), (18, 4525000), (20, 4072500), (24, 3393750), (25, 3258000), (30, 2715000), (36, 2262500), (40, 2036250), (45, 1810000), (48, 1696875), (50, 1629000), (60, 1357500), (72, 1131250), (75, 1086000), (80, 1018125), (90, 905000), (100, 814500), (120, 678750), (125, 651600), (144, 565625), (150, 543000), (180, 452500), (181, 450000), (200, 407250), (225, 362000), (240, 339375), (250, 325800), (300, 271500), (360, 226250), (362, 225000), (375, 217200), (400, 203625), (450, 181000), (500, 162900), (543, 150000), (600, 135750), (625, 130320), (720, 113125), (724, 112500), (750, 108600), (900, 90500), (905, 90000), (1000, 81450), (1086, 75000), (1125, 72400), (1200, 67875), (1250, 65160), (1448, 56250), (1500, 54300), (1629, 50000), (1800, 45250), (1810, 45000), (1875, 43440), (2000, 40725), (2172, 37500), (2250, 36200), (2500, 32580), (2715, 30000), (2896, 28125), (3000, 27150), (3125, 26064), (3258, 25000), (3600, 22625), (3620, 22500), (3750, 21720), (4344, 18750), (4500, 18100), (4525, 18000), (5000, 16290), (5430, 15000), (5625, 14480), (6000, 13575), (6250, 13032), (6516, 12500), (7240, 11250), (7500, 10860), (8145, 10000), (8688, 9375), (9000, 9050)]