289419760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{516821}}^1$

素因数の和:516841

約数の個数: 40

約数和(自身を含む): 769031136

約数和(自身を除く): 479611376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 516821, 1033642, 2067284, 2584105, 3617747, 4134568, 5168210, 7235494, 8269136, 10336420, 14470988, 18088735, 20672840, 28941976, 36177470, 41345680, 57883952, 72354940, 144709880, 289419760]

約数ペア:

[(1, 289419760), (2, 144709880), (4, 72354940), (5, 57883952), (7, 41345680), (8, 36177470), (10, 28941976), (14, 20672840), (16, 18088735), (20, 14470988), (28, 10336420), (35, 8269136), (40, 7235494), (56, 5168210), (70, 4134568), (80, 3617747), (112, 2584105), (140, 2067284), (280, 1033642), (560, 516821)]