668200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 1679580

約数和(自身を除く): 1011380

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 257, 260, 325, 514, 520, 650, 1028, 1285, 1300, 2056, 2570, 2600, 3341, 5140, 6425, 6682, 10280, 12850, 13364, 16705, 25700, 26728, 33410, 51400, 66820, 83525, 133640, 167050, 334100, 668200]

約数ペア:

[(1, 668200), (2, 334100), (4, 167050), (5, 133640), (8, 83525), (10, 66820), (13, 51400), (20, 33410), (25, 26728), (26, 25700), (40, 16705), (50, 13364), (52, 12850), (65, 10280), (100, 6682), (104, 6425), (130, 5140), (200, 3341), (257, 2600), (260, 2570), (325, 2056), (514, 1300), (520, 1285), (650, 1028)]