247335920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12517}}^1$

素因数の和:12562

約数の個数: 80

約数和(自身を含む): 651937440

約数和(自身を除く): 404601520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4940, 9880, 12517, 19760, 25034, 50068, 62585, 100136, 125170, 162721, 200272, 237823, 250340, 325442, 475646, 500680, 650884, 813605, 951292, 1001360, 1189115, 1301768, 1627210, 1902584, 2378230, 2603536, 3091699, 3254420, 3805168, 4756460, 6183398, 6508840, 9512920, 12366796, 13017680, 15458495, 19025840, 24733592, 30916990, 49467184, 61833980, 123667960, 247335920]

約数ペア:

[(1, 247335920), (2, 123667960), (4, 61833980), (5, 49467184), (8, 30916990), (10, 24733592), (13, 19025840), (16, 15458495), (19, 13017680), (20, 12366796), (26, 9512920), (38, 6508840), (40, 6183398), (52, 4756460), (65, 3805168), (76, 3254420), (80, 3091699), (95, 2603536), (104, 2378230), (130, 1902584), (152, 1627210), (190, 1301768), (208, 1189115), (247, 1001360), (260, 951292), (304, 813605), (380, 650884), (494, 500680), (520, 475646), (760, 325442), (988, 250340), (1040, 237823), (1235, 200272), (1520, 162721), (1976, 125170), (2470, 100136), (3952, 62585), (4940, 50068), (9880, 25034), (12517, 19760)]