661379132

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{887}}^1\times {\mathrm{9811}}^1$

素因数の和:10721

約数の個数: 24

約数和(自身を含む): 1219827840

約数和(自身を除く): 558448708

約数列:

[1, 2, 4, 19, 38, 76, 887, 1774, 3548, 9811, 16853, 19622, 33706, 39244, 67412, 186409, 372818, 745636, 8702357, 17404714, 34809428, 165344783, 330689566, 661379132]

約数ペア:

[(1, 661379132), (2, 330689566), (4, 165344783), (19, 34809428), (38, 17404714), (76, 8702357), (887, 745636), (1774, 372818), (3548, 186409), (9811, 67412), (16853, 39244), (19622, 33706)]