395666440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{760897}}^1$

素因数の和:760921

約数の個数: 32

約数和(自身を含む): 958731480

約数和(自身を除く): 563065040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 760897, 1521794, 3043588, 3804485, 6087176, 7608970, 9891661, 15217940, 19783322, 30435880, 39566644, 49458305, 79133288, 98916610, 197833220, 395666440]

約数ペア:

[(1, 395666440), (2, 197833220), (4, 98916610), (5, 79133288), (8, 49458305), (10, 39566644), (13, 30435880), (20, 19783322), (26, 15217940), (40, 9891661), (52, 7608970), (65, 6087176), (104, 3804485), (130, 3043588), (260, 1521794), (520, 760897)]