78438160

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5417}}^1$

素因数の和:5611

約数の個数: 40

約数和(自身を含む): 183410136

約数和(自身を除く): 104971976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 5417, 7240, 10834, 14480, 21668, 27085, 43336, 54170, 86672, 108340, 216680, 433360, 980477, 1960954, 3921908, 4902385, 7843816, 9804770, 15687632, 19609540, 39219080, 78438160]

約数ペア:

[(1, 78438160), (2, 39219080), (4, 19609540), (5, 15687632), (8, 9804770), (10, 7843816), (16, 4902385), (20, 3921908), (40, 1960954), (80, 980477), (181, 433360), (362, 216680), (724, 108340), (905, 86672), (1448, 54170), (1810, 43336), (2896, 27085), (3620, 21668), (5417, 14480), (7240, 10834)]