80142320

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{13723}}^1$

素因数の和:13809

約数の個数: 40

約数和(自身を含む): 188897136

約数和(自身を除く): 108754816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 13723, 27446, 54892, 68615, 109784, 137230, 219568, 274460, 548920, 1001779, 1097840, 2003558, 4007116, 5008895, 8014232, 10017790, 16028464, 20035580, 40071160, 80142320]

約数ペア:

[(1, 80142320), (2, 40071160), (4, 20035580), (5, 16028464), (8, 10017790), (10, 8014232), (16, 5008895), (20, 4007116), (40, 2003558), (73, 1097840), (80, 1001779), (146, 548920), (292, 274460), (365, 219568), (584, 137230), (730, 109784), (1168, 68615), (1460, 54892), (2920, 27446), (5840, 13723)]