231400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 585900

約数和(自身を除く): 354500

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 89, 100, 104, 130, 178, 200, 260, 325, 356, 445, 520, 650, 712, 890, 1157, 1300, 1780, 2225, 2314, 2600, 3560, 4450, 4628, 5785, 8900, 9256, 11570, 17800, 23140, 28925, 46280, 57850, 115700, 231400]

約数ペア:

[(1, 231400), (2, 115700), (4, 57850), (5, 46280), (8, 28925), (10, 23140), (13, 17800), (20, 11570), (25, 9256), (26, 8900), (40, 5785), (50, 4628), (52, 4450), (65, 3560), (89, 2600), (100, 2314), (104, 2225), (130, 1780), (178, 1300), (200, 1157), (260, 890), (325, 712), (356, 650), (445, 520)]