15928575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 31029264

約数和(自身を除く): 15100689

約数列:

[1, 3, 5, 13, 15, 17, 25, 31, 39, 51, 65, 75, 85, 93, 155, 195, 221, 255, 325, 403, 425, 465, 527, 663, 775, 961, 975, 1105, 1209, 1275, 1581, 2015, 2325, 2635, 2883, 3315, 4805, 5525, 6045, 6851, 7905, 10075, 12493, 13175, 14415, 16337, 16575, 20553, 24025, 30225, 34255, 37479, 39525, 49011, 62465, 72075, 81685, 102765, 171275, 187395, 212381, 245055, 312325, 408425, 513825, 637143, 936975, 1061905, 1225275, 3185715, 5309525, 15928575]

約数ペア:

[(1, 15928575), (3, 5309525), (5, 3185715), (13, 1225275), (15, 1061905), (17, 936975), (25, 637143), (31, 513825), (39, 408425), (51, 312325), (65, 245055), (75, 212381), (85, 187395), (93, 171275), (155, 102765), (195, 81685), (221, 72075), (255, 62465), (325, 49011), (403, 39525), (425, 37479), (465, 34255), (527, 30225), (663, 24025), (775, 20553), (961, 16575), (975, 16337), (1105, 14415), (1209, 13175), (1275, 12493), (1581, 10075), (2015, 7905), (2325, 6851), (2635, 6045), (2883, 5525), (3315, 4805)]