81067960

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{27763}}^1$

素因数の和:27847

約数の個数: 32

約数和(自身を含む): 184908240

約数和(自身を除く): 103840280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 27763, 55526, 111052, 138815, 222104, 277630, 555260, 1110520, 2026699, 4053398, 8106796, 10133495, 16213592, 20266990, 40533980, 81067960]

約数ペア:

[(1, 81067960), (2, 40533980), (4, 20266990), (5, 16213592), (8, 10133495), (10, 8106796), (20, 4053398), (40, 2026699), (73, 1110520), (146, 555260), (292, 277630), (365, 222104), (584, 138815), (730, 111052), (1460, 55526), (2920, 27763)]