99900000

素因数分解:

$2^5\times 3^3\times 5^5\times {\mathrm{37}}^1$

素因数の和:81

約数の個数: 288

約数和(自身を含む): 374038560

約数和(自身を除く): 274138560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 37, 40, 45, 48, 50, 54, 60, 72, 74, 75, 80, 90, 96, 100, 108, 111, 120, 125, 135, 144, 148, 150, 160, 180, 185, 200, 216, 222, 225, 240, 250, 270, 288, 296, 300, 333, 360, 370, 375, 400, 432, 444, 450, 480, 500, 540, 555, 592, 600, 625, 666, 675, 720, 740, 750, 800, 864, 888, 900, 925, 999, 1000, 1080, 1110, 1125, 1184, 1200, 1250, 1332, 1350, 1440, 1480, 1500, 1665, 1776, 1800, 1850, 1875, 1998, 2000, 2160, 2220, 2250, 2400, 2500, 2664, 2700, 2775, 2960, 3000, 3125, 3330, 3375, 3552, 3600, 3700, 3750, 3996, 4000, 4320, 4440, 4500, 4625, 4995, 5000, 5328, 5400, 5550, 5625, 5920, 6000, 6250, 6660, 6750, 7200, 7400, 7500, 7992, 8325, 8880, 9000, 9250, 9375, 9990, 10000, 10656, 10800, 11100, 11250, 12000, 12500, 13320, 13500, 13875, 14800, 15000, 15984, 16650, 16875, 17760, 18000, 18500, 18750, 19980, 20000, 21600, 22200, 22500, 23125, 24975, 25000, 26640, 27000, 27750, 28125, 29600, 30000, 31968, 33300, 33750, 36000, 37000, 37500, 39960, 41625, 44400, 45000, 46250, 49950, 50000, 53280, 54000, 55500, 56250, 60000, 66600, 67500, 69375, 74000, 75000, 79920, 83250, 84375, 88800, 90000, 92500, 99900, 100000, 108000, 111000, 112500, 115625, 124875, 133200, 135000, 138750, 148000, 150000, 159840, 166500, 168750, 180000, 185000, 199800, 208125, 222000, 225000, 231250, 249750, 266400, 270000, 277500, 300000, 333000, 337500, 346875, 370000, 399600, 416250, 444000, 450000, 462500, 499500, 540000, 555000, 624375, 666000, 675000, 693750, 740000, 799200, 832500, 900000, 925000, 999000, 1040625, 1110000, 1248750, 1332000, 1350000, 1387500, 1665000, 1850000, 1998000, 2081250, 2220000, 2497500, 2700000, 2775000, 3121875, 3330000, 3700000, 3996000, 4162500, 4995000, 5550000, 6243750, 6660000, 8325000, 9990000, 11100000, 12487500, 16650000, 19980000, 24975000, 33300000, 49950000, 99900000]

約数ペア:

[(1, 99900000), (2, 49950000), (3, 33300000), (4, 24975000), (5, 19980000), (6, 16650000), (8, 12487500), (9, 11100000), (10, 9990000), (12, 8325000), (15, 6660000), (16, 6243750), (18, 5550000), (20, 4995000), (24, 4162500), (25, 3996000), (27, 3700000), (30, 3330000), (32, 3121875), (36, 2775000), (37, 2700000), (40, 2497500), (45, 2220000), (48, 2081250), (50, 1998000), (54, 1850000), (60, 1665000), (72, 1387500), (74, 1350000), (75, 1332000), (80, 1248750), (90, 1110000), (96, 1040625), (100, 999000), (108, 925000), (111, 900000), (120, 832500), (125, 799200), (135, 740000), (144, 693750), (148, 675000), (150, 666000), (160, 624375), (180, 555000), (185, 540000), (200, 499500), (216, 462500), (222, 450000), (225, 444000), (240, 416250), (250, 399600), (270, 370000), (288, 346875), (296, 337500), (300, 333000), (333, 300000), (360, 277500), (370, 270000), (375, 266400), (400, 249750), (432, 231250), (444, 225000), (450, 222000), (480, 208125), (500, 199800), (540, 185000), (555, 180000), (592, 168750), (600, 166500), (625, 159840), (666, 150000), (675, 148000), (720, 138750), (740, 135000), (750, 133200), (800, 124875), (864, 115625), (888, 112500), (900, 111000), (925, 108000), (999, 100000), (1000, 99900), (1080, 92500), (1110, 90000), (1125, 88800), (1184, 84375), (1200, 83250), (1250, 79920), (1332, 75000), (1350, 74000), (1440, 69375), (1480, 67500), (1500, 66600), (1665, 60000), (1776, 56250), (1800, 55500), (1850, 54000), (1875, 53280), (1998, 50000), (2000, 49950), (2160, 46250), (2220, 45000), (2250, 44400), (2400, 41625), (2500, 39960), (2664, 37500), (2700, 37000), (2775, 36000), (2960, 33750), (3000, 33300), (3125, 31968), (3330, 30000), (3375, 29600), (3552, 28125), (3600, 27750), (3700, 27000), (3750, 26640), (3996, 25000), (4000, 24975), (4320, 23125), (4440, 22500), (4500, 22200), (4625, 21600), (4995, 20000), (5000, 19980), (5328, 18750), (5400, 18500), (5550, 18000), (5625, 17760), (5920, 16875), (6000, 16650), (6250, 15984), (6660, 15000), (6750, 14800), (7200, 13875), (7400, 13500), (7500, 13320), (7992, 12500), (8325, 12000), (8880, 11250), (9000, 11100), (9250, 10800), (9375, 10656), (9990, 10000)]