20161110520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1303}}^1\times {\mathrm{20359}}^1$

素因数の和:21692

約数の個数: 64

約数和(自身を含む): 47788992000

約数和(自身を除く): 27627881480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1303, 2606, 5212, 6515, 10424, 13030, 20359, 24757, 26060, 40718, 49514, 52120, 81436, 99028, 101795, 123785, 162872, 198056, 203590, 247570, 386821, 407180, 495140, 773642, 814360, 990280, 1547284, 1934105, 3094568, 3868210, 7736420, 15472840, 26527777, 53055554, 106111108, 132638885, 212222216, 265277770, 504027763, 530555540, 1008055526, 1061111080, 2016111052, 2520138815, 4032222104, 5040277630, 10080555260, 20161110520]

約数ペア:

[(1, 20161110520), (2, 10080555260), (4, 5040277630), (5, 4032222104), (8, 2520138815), (10, 2016111052), (19, 1061111080), (20, 1008055526), (38, 530555540), (40, 504027763), (76, 265277770), (95, 212222216), (152, 132638885), (190, 106111108), (380, 53055554), (760, 26527777), (1303, 15472840), (2606, 7736420), (5212, 3868210), (6515, 3094568), (10424, 1934105), (13030, 1547284), (20359, 990280), (24757, 814360), (26060, 773642), (40718, 495140), (49514, 407180), (52120, 386821), (81436, 247570), (99028, 203590), (101795, 198056), (123785, 162872)]