83390775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 155146320

約数和(自身を除く): 71755545

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 89, 93, 155, 195, 267, 325, 403, 445, 465, 775, 961, 975, 1157, 1209, 1335, 2015, 2225, 2325, 2759, 2883, 3471, 4805, 5785, 6045, 6675, 8277, 10075, 12493, 13795, 14415, 17355, 24025, 28925, 30225, 35867, 37479, 41385, 62465, 68975, 72075, 85529, 86775, 107601, 179335, 187395, 206925, 256587, 312325, 427645, 538005, 896675, 936975, 1111877, 1282935, 2138225, 2690025, 3335631, 5559385, 6414675, 16678155, 27796925, 83390775]

約数ペア:

[(1, 83390775), (3, 27796925), (5, 16678155), (13, 6414675), (15, 5559385), (25, 3335631), (31, 2690025), (39, 2138225), (65, 1282935), (75, 1111877), (89, 936975), (93, 896675), (155, 538005), (195, 427645), (267, 312325), (325, 256587), (403, 206925), (445, 187395), (465, 179335), (775, 107601), (961, 86775), (975, 85529), (1157, 72075), (1209, 68975), (1335, 62465), (2015, 41385), (2225, 37479), (2325, 35867), (2759, 30225), (2883, 28925), (3471, 24025), (4805, 17355), (5785, 14415), (6045, 13795), (6675, 12493), (8277, 10075)]