16586780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{461}}^1$

素因数の和:734

約数の個数: 48

約数和(自身を含む): 40049856

約数和(自身を除く): 23463076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 461, 514, 922, 1028, 1285, 1799, 1844, 2305, 2570, 3227, 3598, 4610, 5140, 6454, 7196, 8995, 9220, 12908, 16135, 17990, 32270, 35980, 64540, 118477, 236954, 473908, 592385, 829339, 1184770, 1658678, 2369540, 3317356, 4146695, 8293390, 16586780]

約数ペア:

[(1, 16586780), (2, 8293390), (4, 4146695), (5, 3317356), (7, 2369540), (10, 1658678), (14, 1184770), (20, 829339), (28, 592385), (35, 473908), (70, 236954), (140, 118477), (257, 64540), (461, 35980), (514, 32270), (922, 17990), (1028, 16135), (1285, 12908), (1799, 9220), (1844, 8995), (2305, 7196), (2570, 6454), (3227, 5140), (3598, 4610)]