20512652538

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{641}}^1\times {\mathrm{1223}}^1$

素因数の和:1972

約数の個数: 96

約数和(自身を含む): 48374340480

約数和(自身を除く): 27861687942

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 89, 98, 147, 178, 267, 294, 534, 623, 641, 1223, 1246, 1282, 1869, 1923, 2446, 3669, 3738, 3846, 4361, 4487, 7338, 8561, 8722, 8974, 13083, 13461, 17122, 25683, 26166, 26922, 31409, 51366, 57049, 59927, 62818, 94227, 108847, 114098, 119854, 171147, 179781, 188454, 217694, 326541, 342294, 359562, 399343, 653082, 761929, 783943, 798686, 1198029, 1523858, 1567886, 2285787, 2351829, 2396058, 2795401, 4571574, 4703658, 5333503, 5487601, 5590802, 8386203, 10667006, 10975202, 16000509, 16462803, 16772406, 32001018, 32925606, 38413207, 69770927, 76826414, 115239621, 139541854, 209312781, 230479242, 418625562, 488396489, 976792978, 1465189467, 2930378934, 3418775423, 6837550846, 10256326269, 20512652538]

約数ペア:

[(1, 20512652538), (2, 10256326269), (3, 6837550846), (6, 3418775423), (7, 2930378934), (14, 1465189467), (21, 976792978), (42, 488396489), (49, 418625562), (89, 230479242), (98, 209312781), (147, 139541854), (178, 115239621), (267, 76826414), (294, 69770927), (534, 38413207), (623, 32925606), (641, 32001018), (1223, 16772406), (1246, 16462803), (1282, 16000509), (1869, 10975202), (1923, 10667006), (2446, 8386203), (3669, 5590802), (3738, 5487601), (3846, 5333503), (4361, 4703658), (4487, 4571574), (7338, 2795401), (8561, 2396058), (8722, 2351829), (8974, 2285787), (13083, 1567886), (13461, 1523858), (17122, 1198029), (25683, 798686), (26166, 783943), (26922, 761929), (31409, 653082), (51366, 399343), (57049, 359562), (59927, 342294), (62818, 326541), (94227, 217694), (108847, 188454), (114098, 179781), (119854, 171147)]