123649720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{8563}}^1$

素因数の和:8612

約数の個数: 48

約数和(自身を含む): 293659560

約数和(自身を除く): 170009840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 7220, 8563, 14440, 17126, 34252, 42815, 68504, 85630, 162697, 171260, 325394, 342520, 650788, 813485, 1301576, 1626970, 3091243, 3253940, 6182486, 6507880, 12364972, 15456215, 24729944, 30912430, 61824860, 123649720]

約数ペア:

[(1, 123649720), (2, 61824860), (4, 30912430), (5, 24729944), (8, 15456215), (10, 12364972), (19, 6507880), (20, 6182486), (38, 3253940), (40, 3091243), (76, 1626970), (95, 1301576), (152, 813485), (190, 650788), (361, 342520), (380, 325394), (722, 171260), (760, 162697), (1444, 85630), (1805, 68504), (2888, 42815), (3610, 34252), (7220, 17126), (8563, 14440)]