145620880

素因数分解:

$2^4\times 5^1\times {\mathrm{1820261}}^1$

素因数の和:1820274

約数の個数: 20

約数和(自身を含む): 338568732

約数和(自身を除く): 192947852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1820261, 3640522, 7281044, 9101305, 14562088, 18202610, 29124176, 36405220, 72810440, 145620880]

約数ペア:

[(1, 145620880), (2, 72810440), (4, 36405220), (5, 29124176), (8, 18202610), (10, 14562088), (16, 9101305), (20, 7281044), (40, 3640522), (80, 1820261)]