18180000

素因数分解:

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

素因数の和:137

約数の個数: 180

約数和(自身を含む): 65243178

約数和(自身を除く): 47063178

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 96, 100, 101, 120, 125, 144, 150, 160, 180, 200, 202, 225, 240, 250, 288, 300, 303, 360, 375, 400, 404, 450, 480, 500, 505, 600, 606, 625, 720, 750, 800, 808, 900, 909, 1000, 1010, 1125, 1200, 1212, 1250, 1440, 1500, 1515, 1616, 1800, 1818, 1875, 2000, 2020, 2250, 2400, 2424, 2500, 2525, 3000, 3030, 3232, 3600, 3636, 3750, 4000, 4040, 4500, 4545, 4848, 5000, 5050, 5625, 6000, 6060, 7200, 7272, 7500, 7575, 8080, 9000, 9090, 9696, 10000, 10100, 11250, 12000, 12120, 12625, 14544, 15000, 15150, 16160, 18000, 18180, 20000, 20200, 22500, 22725, 24240, 25250, 29088, 30000, 30300, 36000, 36360, 37875, 40400, 45000, 45450, 48480, 50500, 60000, 60600, 63125, 72720, 75750, 80800, 90000, 90900, 101000, 113625, 121200, 126250, 145440, 151500, 180000, 181800, 189375, 202000, 227250, 242400, 252500, 303000, 363600, 378750, 404000, 454500, 505000, 568125, 606000, 727200, 757500, 909000, 1010000, 1136250, 1212000, 1515000, 1818000, 2020000, 2272500, 3030000, 3636000, 4545000, 6060000, 9090000, 18180000]

約数ペア:

[(1, 18180000), (2, 9090000), (3, 6060000), (4, 4545000), (5, 3636000), (6, 3030000), (8, 2272500), (9, 2020000), (10, 1818000), (12, 1515000), (15, 1212000), (16, 1136250), (18, 1010000), (20, 909000), (24, 757500), (25, 727200), (30, 606000), (32, 568125), (36, 505000), (40, 454500), (45, 404000), (48, 378750), (50, 363600), (60, 303000), (72, 252500), (75, 242400), (80, 227250), (90, 202000), (96, 189375), (100, 181800), (101, 180000), (120, 151500), (125, 145440), (144, 126250), (150, 121200), (160, 113625), (180, 101000), (200, 90900), (202, 90000), (225, 80800), (240, 75750), (250, 72720), (288, 63125), (300, 60600), (303, 60000), (360, 50500), (375, 48480), (400, 45450), (404, 45000), (450, 40400), (480, 37875), (500, 36360), (505, 36000), (600, 30300), (606, 30000), (625, 29088), (720, 25250), (750, 24240), (800, 22725), (808, 22500), (900, 20200), (909, 20000), (1000, 18180), (1010, 18000), (1125, 16160), (1200, 15150), (1212, 15000), (1250, 14544), (1440, 12625), (1500, 12120), (1515, 12000), (1616, 11250), (1800, 10100), (1818, 10000), (1875, 9696), (2000, 9090), (2020, 9000), (2250, 8080), (2400, 7575), (2424, 7500), (2500, 7272), (2525, 7200), (3000, 6060), (3030, 6000), (3232, 5625), (3600, 5050), (3636, 5000), (3750, 4848), (4000, 4545), (4040, 4500)]