280071960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{333419}}^1$

素因数の和:333440

約数の個数: 64

約数和(自身を含む): 960249600

約数和(自身を除く): 680177640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 333419, 666838, 1000257, 1333676, 1667095, 2000514, 2333933, 2667352, 3334190, 4001028, 4667866, 5001285, 6668380, 7001799, 8002056, 9335732, 10002570, 11669665, 13336760, 14003598, 18671464, 20005140, 23339330, 28007196, 35008995, 40010280, 46678660, 56014392, 70017990, 93357320, 140035980, 280071960]

約数ペア:

[(1, 280071960), (2, 140035980), (3, 93357320), (4, 70017990), (5, 56014392), (6, 46678660), (7, 40010280), (8, 35008995), (10, 28007196), (12, 23339330), (14, 20005140), (15, 18671464), (20, 14003598), (21, 13336760), (24, 11669665), (28, 10002570), (30, 9335732), (35, 8002056), (40, 7001799), (42, 6668380), (56, 5001285), (60, 4667866), (70, 4001028), (84, 3334190), (105, 2667352), (120, 2333933), (140, 2000514), (168, 1667095), (210, 1333676), (280, 1000257), (420, 666838), (840, 333419)]