83816920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2683}}^1$

素因数の和:2776

約数の個数: 64

約数和(自身を含む): 208707840

約数和(自身を除く): 124890920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2683, 2840, 3124, 3905, 5366, 6248, 7810, 10732, 13415, 15620, 21464, 26830, 29513, 31240, 53660, 59026, 107320, 118052, 147565, 190493, 236104, 295130, 380986, 590260, 761972, 952465, 1180520, 1523944, 1904930, 2095423, 3809860, 4190846, 7619720, 8381692, 10477115, 16763384, 20954230, 41908460, 83816920]

約数ペア:

[(1, 83816920), (2, 41908460), (4, 20954230), (5, 16763384), (8, 10477115), (10, 8381692), (11, 7619720), (20, 4190846), (22, 3809860), (40, 2095423), (44, 1904930), (55, 1523944), (71, 1180520), (88, 952465), (110, 761972), (142, 590260), (220, 380986), (284, 295130), (355, 236104), (440, 190493), (568, 147565), (710, 118052), (781, 107320), (1420, 59026), (1562, 53660), (2683, 31240), (2840, 29513), (3124, 26830), (3905, 21464), (5366, 15620), (6248, 13415), (7810, 10732)]