31870215

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 60042528

約数和(自身を除く): 28172313

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 157, 195, 347, 471, 585, 785, 1041, 1413, 1735, 2041, 2355, 3123, 4511, 5205, 6123, 7065, 10205, 13533, 15615, 18369, 22555, 30615, 40599, 54479, 67665, 91845, 163437, 202995, 272395, 490311, 708227, 817185, 2124681, 2451555, 3541135, 6374043, 10623405, 31870215]

約数ペア:

[(1, 31870215), (3, 10623405), (5, 6374043), (9, 3541135), (13, 2451555), (15, 2124681), (39, 817185), (45, 708227), (65, 490311), (117, 272395), (157, 202995), (195, 163437), (347, 91845), (471, 67665), (585, 54479), (785, 40599), (1041, 30615), (1413, 22555), (1735, 18369), (2041, 15615), (2355, 13533), (3123, 10205), (4511, 7065), (5205, 6123)]