81776480

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3677}}^1$

素因数の和:3831

約数の個数: 48

約数和(自身を含む): 194639760

約数和(自身を除く): 112863280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 2224, 2780, 3677, 4448, 5560, 7354, 11120, 14708, 18385, 22240, 29416, 36770, 58832, 73540, 117664, 147080, 294160, 511103, 588320, 1022206, 2044412, 2555515, 4088824, 5111030, 8177648, 10222060, 16355296, 20444120, 40888240, 81776480]

約数ペア:

[(1, 81776480), (2, 40888240), (4, 20444120), (5, 16355296), (8, 10222060), (10, 8177648), (16, 5111030), (20, 4088824), (32, 2555515), (40, 2044412), (80, 1022206), (139, 588320), (160, 511103), (278, 294160), (556, 147080), (695, 117664), (1112, 73540), (1390, 58832), (2224, 36770), (2780, 29416), (3677, 22240), (4448, 18385), (5560, 14708), (7354, 11120)]