28021695

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 24233025

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 79, 85, 107, 195, 221, 237, 255, 321, 395, 535, 663, 1027, 1105, 1185, 1343, 1391, 1605, 1819, 3081, 3315, 4029, 4173, 5135, 5457, 6715, 6955, 8453, 9095, 15405, 17459, 20145, 20865, 23647, 25359, 27285, 42265, 52377, 70941, 87295, 109889, 118235, 126795, 143701, 261885, 329667, 354705, 431103, 549445, 718505, 1648335, 1868113, 2155515, 5604339, 9340565, 28021695]

約数ペア:

[(1, 28021695), (3, 9340565), (5, 5604339), (13, 2155515), (15, 1868113), (17, 1648335), (39, 718505), (51, 549445), (65, 431103), (79, 354705), (85, 329667), (107, 261885), (195, 143701), (221, 126795), (237, 118235), (255, 109889), (321, 87295), (395, 70941), (535, 52377), (663, 42265), (1027, 27285), (1105, 25359), (1185, 23647), (1343, 20865), (1391, 20145), (1605, 17459), (1819, 15405), (3081, 9095), (3315, 8453), (4029, 6955), (4173, 6715), (5135, 5457)]