1228757240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{432661}}^1$

素因数の和:432743

約数の個数: 32

約数和(自身を含む): 2803649760

約数和(自身を除く): 1574892520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 432661, 865322, 1730644, 2163305, 3461288, 4326610, 8653220, 17306440, 30718931, 61437862, 122875724, 153594655, 245751448, 307189310, 614378620, 1228757240]

約数ペア:

[(1, 1228757240), (2, 614378620), (4, 307189310), (5, 245751448), (8, 153594655), (10, 122875724), (20, 61437862), (40, 30718931), (71, 17306440), (142, 8653220), (284, 4326610), (355, 3461288), (568, 2163305), (710, 1730644), (1420, 865322), (2840, 432661)]