19681790

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1031}}^1$

素因数の和:1144

約数の個数: 32

約数和(自身を含む): 37449216

約数和(自身を除く): 17767426

約数列:

[1, 2, 5, 10, 23, 46, 83, 115, 166, 230, 415, 830, 1031, 1909, 2062, 3818, 5155, 9545, 10310, 19090, 23713, 47426, 85573, 118565, 171146, 237130, 427865, 855730, 1968179, 3936358, 9840895, 19681790]

約数ペア:

[(1, 19681790), (2, 9840895), (5, 3936358), (10, 1968179), (23, 855730), (46, 427865), (83, 237130), (115, 171146), (166, 118565), (230, 85573), (415, 47426), (830, 23713), (1031, 19090), (1909, 10310), (2062, 9545), (3818, 5155)]