20401800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{919}}^1$

素因数の和:975

約数の個数: 96

約数和(自身を含む): 65025600

約数和(自身を除く): 44623800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 37, 40, 50, 60, 74, 75, 100, 111, 120, 148, 150, 185, 200, 222, 296, 300, 370, 444, 555, 600, 740, 888, 919, 925, 1110, 1480, 1838, 1850, 2220, 2757, 2775, 3676, 3700, 4440, 4595, 5514, 5550, 7352, 7400, 9190, 11028, 11100, 13785, 18380, 22056, 22200, 22975, 27570, 34003, 36760, 45950, 55140, 68006, 68925, 91900, 102009, 110280, 136012, 137850, 170015, 183800, 204018, 272024, 275700, 340030, 408036, 510045, 551400, 680060, 816072, 850075, 1020090, 1360120, 1700150, 2040180, 2550225, 3400300, 4080360, 5100450, 6800600, 10200900, 20401800]

約数ペア:

[(1, 20401800), (2, 10200900), (3, 6800600), (4, 5100450), (5, 4080360), (6, 3400300), (8, 2550225), (10, 2040180), (12, 1700150), (15, 1360120), (20, 1020090), (24, 850075), (25, 816072), (30, 680060), (37, 551400), (40, 510045), (50, 408036), (60, 340030), (74, 275700), (75, 272024), (100, 204018), (111, 183800), (120, 170015), (148, 137850), (150, 136012), (185, 110280), (200, 102009), (222, 91900), (296, 68925), (300, 68006), (370, 55140), (444, 45950), (555, 36760), (600, 34003), (740, 27570), (888, 22975), (919, 22200), (925, 22056), (1110, 18380), (1480, 13785), (1838, 11100), (1850, 11028), (2220, 9190), (2757, 7400), (2775, 7352), (3676, 5550), (3700, 5514), (4440, 4595)]