1898780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 4398240

約数和(自身を除く): 2499460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 109, 130, 134, 218, 260, 268, 335, 436, 545, 670, 871, 1090, 1340, 1417, 1742, 2180, 2834, 3484, 4355, 5668, 7085, 7303, 8710, 14170, 14606, 17420, 28340, 29212, 36515, 73030, 94939, 146060, 189878, 379756, 474695, 949390, 1898780]

約数ペア:

[(1, 1898780), (2, 949390), (4, 474695), (5, 379756), (10, 189878), (13, 146060), (20, 94939), (26, 73030), (52, 36515), (65, 29212), (67, 28340), (109, 17420), (130, 14606), (134, 14170), (218, 8710), (260, 7303), (268, 7085), (335, 5668), (436, 4355), (545, 3484), (670, 2834), (871, 2180), (1090, 1742), (1340, 1417)]