28734836

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 56504448

約数和(自身を除く): 27769612

約数列:

[1, 2, 4, 13, 26, 43, 52, 71, 86, 142, 172, 181, 284, 362, 559, 724, 923, 1118, 1846, 2236, 2353, 3053, 3692, 4706, 6106, 7783, 9412, 12212, 12851, 15566, 25702, 31132, 39689, 51404, 79378, 101179, 158756, 167063, 202358, 334126, 404716, 552593, 668252, 1105186, 2210372, 7183709, 14367418, 28734836]

約数ペア:

[(1, 28734836), (2, 14367418), (4, 7183709), (13, 2210372), (26, 1105186), (43, 668252), (52, 552593), (71, 404716), (86, 334126), (142, 202358), (172, 167063), (181, 158756), (284, 101179), (362, 79378), (559, 51404), (724, 39689), (923, 31132), (1118, 25702), (1846, 15566), (2236, 12851), (2353, 12212), (3053, 9412), (3692, 7783), (4706, 6106)]