18901680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11251}}^1$

素因数の和:11274

約数の個数: 80

約数和(自身を含む): 66971904

約数和(自身を除く): 48070224

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11251, 22502, 33753, 45004, 56255, 67506, 78757, 90008, 112510, 135012, 157514, 168765, 180016, 225020, 236271, 270024, 315028, 337530, 393785, 450040, 472542, 540048, 630056, 675060, 787570, 900080, 945084, 1181355, 1260112, 1350120, 1575140, 1890168, 2362710, 2700240, 3150280, 3780336, 4725420, 6300560, 9450840, 18901680]

約数ペア:

[(1, 18901680), (2, 9450840), (3, 6300560), (4, 4725420), (5, 3780336), (6, 3150280), (7, 2700240), (8, 2362710), (10, 1890168), (12, 1575140), (14, 1350120), (15, 1260112), (16, 1181355), (20, 945084), (21, 900080), (24, 787570), (28, 675060), (30, 630056), (35, 540048), (40, 472542), (42, 450040), (48, 393785), (56, 337530), (60, 315028), (70, 270024), (80, 236271), (84, 225020), (105, 180016), (112, 168765), (120, 157514), (140, 135012), (168, 112510), (210, 90008), (240, 78757), (280, 67506), (336, 56255), (420, 45004), (560, 33753), (840, 22502), (1680, 11251)]