8151380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1129}}^1$

素因数の和:1176

約数の個数: 36

約数和(自身を含む): 18082260

約数和(自身を除く): 9930880

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1129, 1444, 1805, 2258, 3610, 4516, 5645, 7220, 11290, 21451, 22580, 42902, 85804, 107255, 214510, 407569, 429020, 815138, 1630276, 2037845, 4075690, 8151380]

約数ペア:

[(1, 8151380), (2, 4075690), (4, 2037845), (5, 1630276), (10, 815138), (19, 429020), (20, 407569), (38, 214510), (76, 107255), (95, 85804), (190, 42902), (361, 22580), (380, 21451), (722, 11290), (1129, 7220), (1444, 5645), (1805, 4516), (2258, 3610)]