81432975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^4$

素因数の和:94

約数の個数: 60

約数和(自身を含む): 154054376

約数和(自身を除く): 72621401

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 195, 221, 255, 289, 325, 425, 663, 867, 975, 1105, 1275, 1445, 3315, 3757, 4335, 4913, 5525, 7225, 11271, 14739, 16575, 18785, 21675, 24565, 56355, 63869, 73695, 83521, 93925, 122825, 191607, 250563, 281775, 319345, 368475, 417605, 958035, 1085773, 1252815, 1596725, 2088025, 3257319, 4790175, 5428865, 6264075, 16286595, 27144325, 81432975]

約数ペア:

[(1, 81432975), (3, 27144325), (5, 16286595), (13, 6264075), (15, 5428865), (17, 4790175), (25, 3257319), (39, 2088025), (51, 1596725), (65, 1252815), (75, 1085773), (85, 958035), (195, 417605), (221, 368475), (255, 319345), (289, 281775), (325, 250563), (425, 191607), (663, 122825), (867, 93925), (975, 83521), (1105, 73695), (1275, 63869), (1445, 56355), (3315, 24565), (3757, 21675), (4335, 18785), (4913, 16575), (5525, 14739), (7225, 11271)]