20407130972

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1\times {\mathrm{19583}}^1$

素因数の和:19898

約数の個数: 48

約数和(自身を含む): 38217940992

約数和(自身を除く): 17810810020

約数列:

[1, 2, 4, 23, 46, 47, 92, 94, 188, 241, 482, 964, 1081, 2162, 4324, 5543, 11086, 11327, 19583, 22172, 22654, 39166, 45308, 78332, 260521, 450409, 521042, 900818, 920401, 1042084, 1801636, 1840802, 3681604, 4719503, 9439006, 18878012, 21169223, 42338446, 84676892, 108548569, 217097138, 221816641, 434194276, 443633282, 887266564, 5101782743, 10203565486, 20407130972]

約数ペア:

[(1, 20407130972), (2, 10203565486), (4, 5101782743), (23, 887266564), (46, 443633282), (47, 434194276), (92, 221816641), (94, 217097138), (188, 108548569), (241, 84676892), (482, 42338446), (964, 21169223), (1081, 18878012), (2162, 9439006), (4324, 4719503), (5543, 3681604), (11086, 1840802), (11327, 1801636), (19583, 1042084), (22172, 920401), (22654, 900818), (39166, 521042), (45308, 450409), (78332, 260521)]