28404740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15607}}^1$

素因数の和:15636

約数の個数: 48

約数和(自身を含む): 73420032

約数和(自身を除く): 45015292

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15607, 31214, 62428, 78035, 109249, 156070, 202891, 218498, 312140, 405782, 436996, 546245, 811564, 1014455, 1092490, 1420237, 2028910, 2184980, 2840474, 4057820, 5680948, 7101185, 14202370, 28404740]

約数ペア:

[(1, 28404740), (2, 14202370), (4, 7101185), (5, 5680948), (7, 4057820), (10, 2840474), (13, 2184980), (14, 2028910), (20, 1420237), (26, 1092490), (28, 1014455), (35, 811564), (52, 546245), (65, 436996), (70, 405782), (91, 312140), (130, 218498), (140, 202891), (182, 156070), (260, 109249), (364, 78035), (455, 62428), (910, 31214), (1820, 15607)]