1640954

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:258

約数の個数: 32

約数和(自身を含む): 3072000

約数和(自身を除く): 1431046

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 199, 217, 266, 398, 434, 589, 1178, 1393, 2786, 3781, 4123, 6169, 7562, 8246, 12338, 26467, 43183, 52934, 86366, 117211, 234422, 820477, 1640954]

約数ペア:

[(1, 1640954), (2, 820477), (7, 234422), (14, 117211), (19, 86366), (31, 52934), (38, 43183), (62, 26467), (133, 12338), (199, 8246), (217, 7562), (266, 6169), (398, 4123), (434, 3781), (589, 2786), (1178, 1393)]