16440720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1123}}^1$

素因数の和:1200

約数の個数: 80

約数和(自身を含む): 51847872

約数和(自身を除く): 35407152

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1123, 1220, 1464, 1830, 2246, 2440, 2928, 3369, 3660, 4492, 4880, 5615, 6738, 7320, 8984, 11230, 13476, 14640, 16845, 17968, 22460, 26952, 33690, 44920, 53904, 67380, 68503, 89840, 134760, 137006, 205509, 269520, 274012, 342515, 411018, 548024, 685030, 822036, 1027545, 1096048, 1370060, 1644072, 2055090, 2740120, 3288144, 4110180, 5480240, 8220360, 16440720]

約数ペア:

[(1, 16440720), (2, 8220360), (3, 5480240), (4, 4110180), (5, 3288144), (6, 2740120), (8, 2055090), (10, 1644072), (12, 1370060), (15, 1096048), (16, 1027545), (20, 822036), (24, 685030), (30, 548024), (40, 411018), (48, 342515), (60, 274012), (61, 269520), (80, 205509), (120, 137006), (122, 134760), (183, 89840), (240, 68503), (244, 67380), (305, 53904), (366, 44920), (488, 33690), (610, 26952), (732, 22460), (915, 17968), (976, 16845), (1123, 14640), (1220, 13476), (1464, 11230), (1830, 8984), (2246, 7320), (2440, 6738), (2928, 5615), (3369, 4880), (3660, 4492)]