858662915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 1229437440

約数和(自身を除く): 370774525

約数列:

[1, 5, 11, 19, 43, 55, 95, 97, 197, 209, 215, 473, 485, 817, 985, 1045, 1067, 1843, 2167, 2365, 3743, 4085, 4171, 5335, 8471, 8987, 9215, 10835, 18715, 19109, 20273, 20855, 41173, 42355, 44935, 45881, 79249, 93181, 95545, 101365, 160949, 205865, 210199, 229405, 363071, 396245, 465905, 804745, 821687, 871739, 1050995, 1770439, 1815355, 3993781, 4108435, 4358695, 8852195, 9038557, 15612053, 19968905, 45192785, 78060265, 171732583, 858662915]

約数ペア:

[(1, 858662915), (5, 171732583), (11, 78060265), (19, 45192785), (43, 19968905), (55, 15612053), (95, 9038557), (97, 8852195), (197, 4358695), (209, 4108435), (215, 3993781), (473, 1815355), (485, 1770439), (817, 1050995), (985, 871739), (1045, 821687), (1067, 804745), (1843, 465905), (2167, 396245), (2365, 363071), (3743, 229405), (4085, 210199), (4171, 205865), (5335, 160949), (8471, 101365), (8987, 95545), (9215, 93181), (10835, 79249), (18715, 45881), (19109, 44935), (20273, 42355), (20855, 41173)]