399327484

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{18181}}^1$

素因数の和:18238

約数の個数: 36

約数和(自身を含む): 781462360

約数和(自身を除く): 382134876

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 289, 323, 578, 646, 1156, 1292, 5491, 10982, 18181, 21964, 36362, 72724, 309077, 345439, 618154, 690878, 1236308, 1381756, 5254309, 5872463, 10508618, 11744926, 21017236, 23489852, 99831871, 199663742, 399327484]

約数ペア:

[(1, 399327484), (2, 199663742), (4, 99831871), (17, 23489852), (19, 21017236), (34, 11744926), (38, 10508618), (68, 5872463), (76, 5254309), (289, 1381756), (323, 1236308), (578, 690878), (646, 618154), (1156, 345439), (1292, 309077), (5491, 72724), (10982, 36362), (18181, 21964)]