17780728

素因数分解:

$2^3\times 7^2\times {\mathrm{67}}^1\times {\mathrm{677}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 39418920

約数和(自身を除く): 21638192

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 67, 98, 134, 196, 268, 392, 469, 536, 677, 938, 1354, 1876, 2708, 3283, 3752, 4739, 5416, 6566, 9478, 13132, 18956, 26264, 33173, 37912, 45359, 66346, 90718, 132692, 181436, 265384, 317513, 362872, 635026, 1270052, 2222591, 2540104, 4445182, 8890364, 17780728]

約数ペア:

[(1, 17780728), (2, 8890364), (4, 4445182), (7, 2540104), (8, 2222591), (14, 1270052), (28, 635026), (49, 362872), (56, 317513), (67, 265384), (98, 181436), (134, 132692), (196, 90718), (268, 66346), (392, 45359), (469, 37912), (536, 33173), (677, 26264), (938, 18956), (1354, 13132), (1876, 9478), (2708, 6566), (3283, 5416), (3752, 4739)]