180965720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{348011}}^1$

素因数の和:348035

約数の個数: 32

約数和(自身を含む): 438495120

約数和(自身を除く): 257529400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 348011, 696022, 1392044, 1740055, 2784088, 3480110, 4524143, 6960220, 9048286, 13920440, 18096572, 22620715, 36193144, 45241430, 90482860, 180965720]

約数ペア:

[(1, 180965720), (2, 90482860), (4, 45241430), (5, 36193144), (8, 22620715), (10, 18096572), (13, 13920440), (20, 9048286), (26, 6960220), (40, 4524143), (52, 3480110), (65, 2784088), (104, 1740055), (130, 1392044), (260, 696022), (520, 348011)]