1698980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 3991680

約数和(自身を除く): 2292700

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 263, 323, 340, 380, 526, 646, 1052, 1292, 1315, 1615, 2630, 3230, 4471, 4997, 5260, 6460, 8942, 9994, 17884, 19988, 22355, 24985, 44710, 49970, 84949, 89420, 99940, 169898, 339796, 424745, 849490, 1698980]

約数ペア:

[(1, 1698980), (2, 849490), (4, 424745), (5, 339796), (10, 169898), (17, 99940), (19, 89420), (20, 84949), (34, 49970), (38, 44710), (68, 24985), (76, 22355), (85, 19988), (95, 17884), (170, 9994), (190, 8942), (263, 6460), (323, 5260), (340, 4997), (380, 4471), (526, 3230), (646, 2630), (1052, 1615), (1292, 1315)]