25495990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4561}}^1$

素因数の和:4624

約数の個数: 32

約数和(自身を含む): 50583456

約数和(自身を除く): 25087466

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 4561, 5590, 9122, 22805, 45610, 59293, 118586, 196123, 296465, 392246, 592930, 980615, 1961230, 2549599, 5099198, 12747995, 25495990]

約数ペア:

[(1, 25495990), (2, 12747995), (5, 5099198), (10, 2549599), (13, 1961230), (26, 980615), (43, 592930), (65, 392246), (86, 296465), (130, 196123), (215, 118586), (430, 59293), (559, 45610), (1118, 22805), (2795, 9122), (4561, 5590)]