5137040

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:579

約数の個数: 40

約数和(自身を含む): 12049080

約数和(自身を除く): 6912040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 409, 628, 785, 818, 1256, 1570, 1636, 2045, 2512, 3140, 3272, 4090, 6280, 6544, 8180, 12560, 16360, 32720, 64213, 128426, 256852, 321065, 513704, 642130, 1027408, 1284260, 2568520, 5137040]

約数ペア:

[(1, 5137040), (2, 2568520), (4, 1284260), (5, 1027408), (8, 642130), (10, 513704), (16, 321065), (20, 256852), (40, 128426), (80, 64213), (157, 32720), (314, 16360), (409, 12560), (628, 8180), (785, 6544), (818, 6280), (1256, 4090), (1570, 3272), (1636, 3140), (2045, 2512)]