120803260

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{67867}}^1$

素因数の和:67965

約数の個数: 24

約数和(自身を含む): 256541040

約数和(自身を除く): 135737780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 67867, 135734, 271468, 339335, 678670, 1357340, 6040163, 12080326, 24160652, 30200815, 60401630, 120803260]

約数ペア:

[(1, 120803260), (2, 60401630), (4, 30200815), (5, 24160652), (10, 12080326), (20, 6040163), (89, 1357340), (178, 678670), (356, 339335), (445, 271468), (890, 135734), (1780, 67867)]