28905688

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3881}}^1$

素因数の和:3920

約数の個数: 48

約数和(自身を含む): 66382200

約数和(自身を除く): 37476512

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 392, 532, 931, 1064, 1862, 3724, 3881, 7448, 7762, 15524, 27167, 31048, 54334, 73739, 108668, 147478, 190169, 217336, 294956, 380338, 516173, 589912, 760676, 1032346, 1521352, 2064692, 3613211, 4129384, 7226422, 14452844, 28905688]

約数ペア:

[(1, 28905688), (2, 14452844), (4, 7226422), (7, 4129384), (8, 3613211), (14, 2064692), (19, 1521352), (28, 1032346), (38, 760676), (49, 589912), (56, 516173), (76, 380338), (98, 294956), (133, 217336), (152, 190169), (196, 147478), (266, 108668), (392, 73739), (532, 54334), (931, 31048), (1064, 27167), (1862, 15524), (3724, 7762), (3881, 7448)]