28130242

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{439}}^1$

素因数の和:670

約数の個数: 32

約数和(自身を含む): 50688000

約数和(自身を除く): 22557758

約数列:

[1, 2, 7, 14, 23, 46, 161, 199, 322, 398, 439, 878, 1393, 2786, 3073, 4577, 6146, 9154, 10097, 20194, 32039, 64078, 70679, 87361, 141358, 174722, 611527, 1223054, 2009303, 4018606, 14065121, 28130242]

約数ペア:

[(1, 28130242), (2, 14065121), (7, 4018606), (14, 2009303), (23, 1223054), (46, 611527), (161, 174722), (199, 141358), (322, 87361), (398, 70679), (439, 64078), (878, 32039), (1393, 20194), (2786, 10097), (3073, 9154), (4577, 6146)]