4321720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8311}}^1$

素因数の和:8335

約数の個数: 32

約数和(自身を含む): 10473120

約数和(自身を除く): 6151400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 8311, 16622, 33244, 41555, 66488, 83110, 108043, 166220, 216086, 332440, 432172, 540215, 864344, 1080430, 2160860, 4321720]

約数ペア:

[(1, 4321720), (2, 2160860), (4, 1080430), (5, 864344), (8, 540215), (10, 432172), (13, 332440), (20, 216086), (26, 166220), (40, 108043), (52, 83110), (65, 66488), (104, 41555), (130, 33244), (260, 16622), (520, 8311)]