1639585840

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{280751}}^1$

素因数の和:280837

約数の個数: 40

約数和(自身を含む): 3864270528

約数和(自身を除く): 2224684688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 280751, 561502, 1123004, 1403755, 2246008, 2807510, 4492016, 5615020, 11230040, 20494823, 22460080, 40989646, 81979292, 102474115, 163958584, 204948230, 327917168, 409896460, 819792920, 1639585840]

約数ペア:

[(1, 1639585840), (2, 819792920), (4, 409896460), (5, 327917168), (8, 204948230), (10, 163958584), (16, 102474115), (20, 81979292), (40, 40989646), (73, 22460080), (80, 20494823), (146, 11230040), (292, 5615020), (365, 4492016), (584, 2807510), (730, 2246008), (1168, 1403755), (1460, 1123004), (2920, 561502), (5840, 280751)]