40865656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20681}}^1$

素因数の和:20719

約数の個数: 32

約数和(自身を含む): 86864400

約数和(自身を除く): 45998744

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 20681, 41362, 82724, 165448, 268853, 392939, 537706, 785878, 1075412, 1571756, 2150824, 3143512, 5108207, 10216414, 20432828, 40865656]

約数ペア:

[(1, 40865656), (2, 20432828), (4, 10216414), (8, 5108207), (13, 3143512), (19, 2150824), (26, 1571756), (38, 1075412), (52, 785878), (76, 537706), (104, 392939), (152, 268853), (247, 165448), (494, 82724), (988, 41362), (1976, 20681)]