405492040

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{151303}}^1$

素因数の和:151381

約数の個数: 32

約数和(自身を含む): 925980480

約数和(自身を除く): 520488440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 151303, 302606, 605212, 756515, 1210424, 1513030, 3026060, 6052120, 10137301, 20274602, 40549204, 50686505, 81098408, 101373010, 202746020, 405492040]

約数ペア:

[(1, 405492040), (2, 202746020), (4, 101373010), (5, 81098408), (8, 50686505), (10, 40549204), (20, 20274602), (40, 10137301), (67, 6052120), (134, 3026060), (268, 1513030), (335, 1210424), (536, 756515), (670, 605212), (1340, 302606), (2680, 151303)]