18781680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1$

素因数の和:718

約数の個数: 80

約数和(自身を含む): 58746240

約数和(自身を除く): 39964560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 139, 240, 278, 417, 556, 563, 695, 834, 1112, 1126, 1390, 1668, 1689, 2085, 2224, 2252, 2780, 2815, 3336, 3378, 4170, 4504, 5560, 5630, 6672, 6756, 8340, 8445, 9008, 11120, 11260, 13512, 16680, 16890, 22520, 27024, 33360, 33780, 45040, 67560, 78257, 135120, 156514, 234771, 313028, 391285, 469542, 626056, 782570, 939084, 1173855, 1252112, 1565140, 1878168, 2347710, 3130280, 3756336, 4695420, 6260560, 9390840, 18781680]

約数ペア:

[(1, 18781680), (2, 9390840), (3, 6260560), (4, 4695420), (5, 3756336), (6, 3130280), (8, 2347710), (10, 1878168), (12, 1565140), (15, 1252112), (16, 1173855), (20, 939084), (24, 782570), (30, 626056), (40, 469542), (48, 391285), (60, 313028), (80, 234771), (120, 156514), (139, 135120), (240, 78257), (278, 67560), (417, 45040), (556, 33780), (563, 33360), (695, 27024), (834, 22520), (1112, 16890), (1126, 16680), (1390, 13512), (1668, 11260), (1689, 11120), (2085, 9008), (2224, 8445), (2252, 8340), (2780, 6756), (2815, 6672), (3336, 5630), (3378, 5560), (4170, 4504)]