16381568

素因数分解:

$2^7\times 7^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 38188800

約数和(自身を除く): 21807232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 128, 188, 224, 329, 376, 389, 448, 658, 752, 778, 896, 1316, 1504, 1556, 2632, 2723, 3008, 3112, 5264, 5446, 6016, 6224, 10528, 10892, 12448, 18283, 21056, 21784, 24896, 36566, 42112, 43568, 49792, 73132, 87136, 127981, 146264, 174272, 255962, 292528, 348544, 511924, 585056, 1023848, 1170112, 2047696, 2340224, 4095392, 8190784, 16381568]

約数ペア:

[(1, 16381568), (2, 8190784), (4, 4095392), (7, 2340224), (8, 2047696), (14, 1170112), (16, 1023848), (28, 585056), (32, 511924), (47, 348544), (56, 292528), (64, 255962), (94, 174272), (112, 146264), (128, 127981), (188, 87136), (224, 73132), (329, 49792), (376, 43568), (389, 42112), (448, 36566), (658, 24896), (752, 21784), (778, 21056), (896, 18283), (1316, 12448), (1504, 10892), (1556, 10528), (2632, 6224), (2723, 6016), (3008, 5446), (3112, 5264)]