40040144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{131711}}^1$

素因数の和:131738

約数の個数: 20

約数和(自身を含む): 81661440

約数和(自身を除く): 41621296

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 131711, 263422, 526844, 1053688, 2107376, 2502509, 5005018, 10010036, 20020072, 40040144]

約数ペア:

[(1, 40040144), (2, 20020072), (4, 10010036), (8, 5005018), (16, 2502509), (19, 2107376), (38, 1053688), (76, 526844), (152, 263422), (304, 131711)]