20074460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{643}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 48470016

約数和(自身を除く): 28395556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 643, 892, 1115, 1286, 1561, 2230, 2572, 3122, 3215, 4460, 4501, 6244, 6430, 7805, 9002, 12860, 15610, 18004, 22505, 31220, 45010, 90020, 143389, 286778, 573556, 716945, 1003723, 1433890, 2007446, 2867780, 4014892, 5018615, 10037230, 20074460]

約数ペア:

[(1, 20074460), (2, 10037230), (4, 5018615), (5, 4014892), (7, 2867780), (10, 2007446), (14, 1433890), (20, 1003723), (28, 716945), (35, 573556), (70, 286778), (140, 143389), (223, 90020), (446, 45010), (643, 31220), (892, 22505), (1115, 18004), (1286, 15610), (1561, 12860), (2230, 9002), (2572, 7805), (3122, 6430), (3215, 6244), (4460, 4501)]