20829680

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3137}}^1$

素因数の和:3233

約数の個数: 40

約数和(自身を含む): 49028112

約数和(自身を除く): 28198432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3137, 3320, 6274, 6640, 12548, 15685, 25096, 31370, 50192, 62740, 125480, 250960, 260371, 520742, 1041484, 1301855, 2082968, 2603710, 4165936, 5207420, 10414840, 20829680]

約数ペア:

[(1, 20829680), (2, 10414840), (4, 5207420), (5, 4165936), (8, 2603710), (10, 2082968), (16, 1301855), (20, 1041484), (40, 520742), (80, 260371), (83, 250960), (166, 125480), (332, 62740), (415, 50192), (664, 31370), (830, 25096), (1328, 15685), (1660, 12548), (3137, 6640), (3320, 6274)]