18723512

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 37200000

約数和(自身を除く): 18476488

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 199, 398, 619, 796, 1238, 1592, 2476, 3781, 4952, 7562, 11761, 15124, 23522, 30248, 47044, 94088, 123181, 246362, 492724, 985448, 2340439, 4680878, 9361756, 18723512]

約数ペア:

[(1, 18723512), (2, 9361756), (4, 4680878), (8, 2340439), (19, 985448), (38, 492724), (76, 246362), (152, 123181), (199, 94088), (398, 47044), (619, 30248), (796, 23522), (1238, 15124), (1592, 11761), (2476, 7562), (3781, 4952)]