13440880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9883}}^1$

素因数の和:9913

約数の個数: 40

約数和(自身を含む): 33091632

約数和(自身を除く): 19650752

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 9883, 19766, 39532, 49415, 79064, 98830, 158128, 168011, 197660, 336022, 395320, 672044, 790640, 840055, 1344088, 1680110, 2688176, 3360220, 6720440, 13440880]

約数ペア:

[(1, 13440880), (2, 6720440), (4, 3360220), (5, 2688176), (8, 1680110), (10, 1344088), (16, 840055), (17, 790640), (20, 672044), (34, 395320), (40, 336022), (68, 197660), (80, 168011), (85, 158128), (136, 98830), (170, 79064), (272, 49415), (340, 39532), (680, 19766), (1360, 9883)]