1878240280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{48259}}^1$

素因数の和:48416

約数の個数: 64

約数和(自身を含む): 4864608000

約数和(自身を除く): 2986367720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2780, 3892, 4865, 5560, 7784, 9730, 19460, 38920, 48259, 96518, 193036, 241295, 337813, 386072, 482590, 675626, 965180, 1351252, 1689065, 1930360, 2702504, 3378130, 6708001, 6756260, 13416002, 13512520, 26832004, 33540005, 46956007, 53664008, 67080010, 93912014, 134160020, 187824028, 234780035, 268320040, 375648056, 469560070, 939120140, 1878240280]

約数ペア:

[(1, 1878240280), (2, 939120140), (4, 469560070), (5, 375648056), (7, 268320040), (8, 234780035), (10, 187824028), (14, 134160020), (20, 93912014), (28, 67080010), (35, 53664008), (40, 46956007), (56, 33540005), (70, 26832004), (139, 13512520), (140, 13416002), (278, 6756260), (280, 6708001), (556, 3378130), (695, 2702504), (973, 1930360), (1112, 1689065), (1390, 1351252), (1946, 965180), (2780, 675626), (3892, 482590), (4865, 386072), (5560, 337813), (7784, 241295), (9730, 193036), (19460, 96518), (38920, 48259)]