64716760

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 149597280

約数和(自身を除く): 84880520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 101, 166, 193, 202, 332, 386, 404, 415, 505, 664, 772, 808, 830, 965, 1010, 1544, 1660, 1930, 2020, 3320, 3860, 4040, 7720, 8383, 16019, 16766, 19493, 32038, 33532, 38986, 41915, 64076, 67064, 77972, 80095, 83830, 97465, 128152, 155944, 160190, 167660, 194930, 320380, 335320, 389860, 640760, 779720, 1617919, 3235838, 6471676, 8089595, 12943352, 16179190, 32358380, 64716760]

約数ペア:

[(1, 64716760), (2, 32358380), (4, 16179190), (5, 12943352), (8, 8089595), (10, 6471676), (20, 3235838), (40, 1617919), (83, 779720), (101, 640760), (166, 389860), (193, 335320), (202, 320380), (332, 194930), (386, 167660), (404, 160190), (415, 155944), (505, 128152), (664, 97465), (772, 83830), (808, 80095), (830, 77972), (965, 67064), (1010, 64076), (1544, 41915), (1660, 38986), (1930, 33532), (2020, 32038), (3320, 19493), (3860, 16766), (4040, 16019), (7720, 8383)]