81449390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{38971}}^1$

素因数の和:39008

約数の個数: 32

約数和(自身を含む): 168359040

約数和(自身を除く): 86909650

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 38971, 77942, 194855, 389710, 428681, 740449, 857362, 1480898, 2143405, 3702245, 4286810, 7404490, 8144939, 16289878, 40724695, 81449390]

約数ペア:

[(1, 81449390), (2, 40724695), (5, 16289878), (10, 8144939), (11, 7404490), (19, 4286810), (22, 3702245), (38, 2143405), (55, 1480898), (95, 857362), (110, 740449), (190, 428681), (209, 389710), (418, 194855), (1045, 77942), (2090, 38971)]