16664440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{439}}^1$

素因数の和:536

約数の個数: 64

約数和(自身を含む): 41025600

約数和(自身を除く): 24361160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 439, 520, 584, 730, 878, 949, 1460, 1756, 1898, 2195, 2920, 3512, 3796, 4390, 4745, 5707, 7592, 8780, 9490, 11414, 17560, 18980, 22828, 28535, 32047, 37960, 45656, 57070, 64094, 114140, 128188, 160235, 228280, 256376, 320470, 416611, 640940, 833222, 1281880, 1666444, 2083055, 3332888, 4166110, 8332220, 16664440]

約数ペア:

[(1, 16664440), (2, 8332220), (4, 4166110), (5, 3332888), (8, 2083055), (10, 1666444), (13, 1281880), (20, 833222), (26, 640940), (40, 416611), (52, 320470), (65, 256376), (73, 228280), (104, 160235), (130, 128188), (146, 114140), (260, 64094), (292, 57070), (365, 45656), (439, 37960), (520, 32047), (584, 28535), (730, 22828), (878, 18980), (949, 17560), (1460, 11414), (1756, 9490), (1898, 8780), (2195, 7592), (2920, 5707), (3512, 4745), (3796, 4390)]