9090000

素因数分解:

$2^4\times 3^2\times 5^4\times {\mathrm{101}}^1$

素因数の和:135

約数の個数: 150

約数和(自身を含む): 32103786

約数和(自身を除く): 23013786

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, 101, 120, 125, 144, 150, 180, 200, 202, 225, 240, 250, 300, 303, 360, 375, 400, 404, 450, 500, 505, 600, 606, 625, 720, 750, 808, 900, 909, 1000, 1010, 1125, 1200, 1212, 1250, 1500, 1515, 1616, 1800, 1818, 1875, 2000, 2020, 2250, 2424, 2500, 2525, 3000, 3030, 3600, 3636, 3750, 4040, 4500, 4545, 4848, 5000, 5050, 5625, 6000, 6060, 7272, 7500, 7575, 8080, 9000, 9090, 10000, 10100, 11250, 12120, 12625, 14544, 15000, 15150, 18000, 18180, 20200, 22500, 22725, 24240, 25250, 30000, 30300, 36360, 37875, 40400, 45000, 45450, 50500, 60600, 63125, 72720, 75750, 90000, 90900, 101000, 113625, 121200, 126250, 151500, 181800, 189375, 202000, 227250, 252500, 303000, 363600, 378750, 454500, 505000, 568125, 606000, 757500, 909000, 1010000, 1136250, 1515000, 1818000, 2272500, 3030000, 4545000, 9090000]

約数ペア:

[(1, 9090000), (2, 4545000), (3, 3030000), (4, 2272500), (5, 1818000), (6, 1515000), (8, 1136250), (9, 1010000), (10, 909000), (12, 757500), (15, 606000), (16, 568125), (18, 505000), (20, 454500), (24, 378750), (25, 363600), (30, 303000), (36, 252500), (40, 227250), (45, 202000), (48, 189375), (50, 181800), (60, 151500), (72, 126250), (75, 121200), (80, 113625), (90, 101000), (100, 90900), (101, 90000), (120, 75750), (125, 72720), (144, 63125), (150, 60600), (180, 50500), (200, 45450), (202, 45000), (225, 40400), (240, 37875), (250, 36360), (300, 30300), (303, 30000), (360, 25250), (375, 24240), (400, 22725), (404, 22500), (450, 20200), (500, 18180), (505, 18000), (600, 15150), (606, 15000), (625, 14544), (720, 12625), (750, 12120), (808, 11250), (900, 10100), (909, 10000), (1000, 9090), (1010, 9000), (1125, 8080), (1200, 7575), (1212, 7500), (1250, 7272), (1500, 6060), (1515, 6000), (1616, 5625), (1800, 5050), (1818, 5000), (1875, 4848), (2000, 4545), (2020, 4500), (2250, 4040), (2424, 3750), (2500, 3636), (2525, 3600), (3000, 3030)]