78401270

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1\times {\mathrm{509}}^1$

素因数の和:800

約数の個数: 32

約数和(自身を含む): 144015840

約数和(自身を除く): 65614570

約数列:

[1, 2, 5, 10, 73, 146, 211, 365, 422, 509, 730, 1018, 1055, 2110, 2545, 5090, 15403, 30806, 37157, 74314, 77015, 107399, 154030, 185785, 214798, 371570, 536995, 1073990, 7840127, 15680254, 39200635, 78401270]

約数ペア:

[(1, 78401270), (2, 39200635), (5, 15680254), (10, 7840127), (73, 1073990), (146, 536995), (211, 371570), (365, 214798), (422, 185785), (509, 154030), (730, 107399), (1018, 77015), (1055, 74314), (2110, 37157), (2545, 30806), (5090, 15403)]