40005640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52639}}^1$

素因数の和:52669

約数の個数: 32

約数和(自身を含む): 94752000

約数和(自身を除く): 54746360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 52639, 105278, 210556, 263195, 421112, 526390, 1000141, 1052780, 2000282, 2105560, 4000564, 5000705, 8001128, 10001410, 20002820, 40005640]

約数ペア:

[(1, 40005640), (2, 20002820), (4, 10001410), (5, 8001128), (8, 5000705), (10, 4000564), (19, 2105560), (20, 2000282), (38, 1052780), (40, 1000141), (76, 526390), (95, 421112), (152, 263195), (190, 210556), (380, 105278), (760, 52639)]