16972280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 41610240

約数和(自身を除く): 24637960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 127, 130, 254, 257, 260, 508, 514, 520, 635, 1016, 1028, 1270, 1285, 1651, 2056, 2540, 2570, 3302, 3341, 5080, 5140, 6604, 6682, 8255, 10280, 13208, 13364, 16510, 16705, 26728, 32639, 33020, 33410, 65278, 66040, 66820, 130556, 133640, 163195, 261112, 326390, 424307, 652780, 848614, 1305560, 1697228, 2121535, 3394456, 4243070, 8486140, 16972280]

約数ペア:

[(1, 16972280), (2, 8486140), (4, 4243070), (5, 3394456), (8, 2121535), (10, 1697228), (13, 1305560), (20, 848614), (26, 652780), (40, 424307), (52, 326390), (65, 261112), (104, 163195), (127, 133640), (130, 130556), (254, 66820), (257, 66040), (260, 65278), (508, 33410), (514, 33020), (520, 32639), (635, 26728), (1016, 16705), (1028, 16510), (1270, 13364), (1285, 13208), (1651, 10280), (2056, 8255), (2540, 6682), (2570, 6604), (3302, 5140), (3341, 5080)]