51497680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{293}}^1$

素因数の和:345

約数の個数: 80

約数和(自身を含む): 130147920

約数和(自身を除く): 78650240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 293, 338, 520, 586, 676, 845, 1040, 1172, 1352, 1465, 1690, 2197, 2344, 2704, 2930, 3380, 3809, 4394, 4688, 5860, 6760, 7618, 8788, 10985, 11720, 13520, 15236, 17576, 19045, 21970, 23440, 30472, 35152, 38090, 43940, 49517, 60944, 76180, 87880, 99034, 152360, 175760, 198068, 247585, 304720, 396136, 495170, 643721, 792272, 990340, 1287442, 1980680, 2574884, 3218605, 3961360, 5149768, 6437210, 10299536, 12874420, 25748840, 51497680]

約数ペア:

[(1, 51497680), (2, 25748840), (4, 12874420), (5, 10299536), (8, 6437210), (10, 5149768), (13, 3961360), (16, 3218605), (20, 2574884), (26, 1980680), (40, 1287442), (52, 990340), (65, 792272), (80, 643721), (104, 495170), (130, 396136), (169, 304720), (208, 247585), (260, 198068), (293, 175760), (338, 152360), (520, 99034), (586, 87880), (676, 76180), (845, 60944), (1040, 49517), (1172, 43940), (1352, 38090), (1465, 35152), (1690, 30472), (2197, 23440), (2344, 21970), (2704, 19045), (2930, 17576), (3380, 15236), (3809, 13520), (4394, 11720), (4688, 10985), (5860, 8788), (6760, 7618)]