18970480

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2857}}^1$

素因数の和:2953

約数の個数: 40

約数和(自身を含む): 44653392

約数和(自身を除く): 25682912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 2857, 3320, 5714, 6640, 11428, 14285, 22856, 28570, 45712, 57140, 114280, 228560, 237131, 474262, 948524, 1185655, 1897048, 2371310, 3794096, 4742620, 9485240, 18970480]

約数ペア:

[(1, 18970480), (2, 9485240), (4, 4742620), (5, 3794096), (8, 2371310), (10, 1897048), (16, 1185655), (20, 948524), (40, 474262), (80, 237131), (83, 228560), (166, 114280), (332, 57140), (415, 45712), (664, 28570), (830, 22856), (1328, 14285), (1660, 11428), (2857, 6640), (3320, 5714)]