442326440

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{124249}}^1$

素因数の和:124349

約数の個数: 32

約数和(自身を含む): 1006425000

約数和(自身を除く): 564098560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 124249, 248498, 496996, 621245, 993992, 1242490, 2484980, 4969960, 11058161, 22116322, 44232644, 55290805, 88465288, 110581610, 221163220, 442326440]

約数ペア:

[(1, 442326440), (2, 221163220), (4, 110581610), (5, 88465288), (8, 55290805), (10, 44232644), (20, 22116322), (40, 11058161), (89, 4969960), (178, 2484980), (356, 1242490), (445, 993992), (712, 621245), (890, 496996), (1780, 248498), (3560, 124249)]