69890275

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 110215168

約数和(自身を除く): 40324893

約数列:

[1, 5, 7, 13, 25, 31, 35, 65, 91, 155, 175, 217, 325, 403, 455, 775, 991, 1085, 2015, 2275, 2821, 4955, 5425, 6937, 10075, 12883, 14105, 24775, 30721, 34685, 64415, 70525, 90181, 153605, 173425, 215047, 322075, 399373, 450905, 768025, 1075235, 1996865, 2254525, 2795611, 5376175, 9984325, 13978055, 69890275]

約数ペア:

[(1, 69890275), (5, 13978055), (7, 9984325), (13, 5376175), (25, 2795611), (31, 2254525), (35, 1996865), (65, 1075235), (91, 768025), (155, 450905), (175, 399373), (217, 322075), (325, 215047), (403, 173425), (455, 153605), (775, 90181), (991, 70525), (1085, 64415), (2015, 34685), (2275, 30721), (2821, 24775), (4955, 14105), (5425, 12883), (6937, 10075)]