64513215

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{499}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 128466000

約数和(自身を除く): 63952785

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 169, 195, 221, 255, 499, 507, 585, 663, 765, 845, 1105, 1497, 1521, 1989, 2495, 2535, 2873, 3315, 4491, 6487, 7485, 7605, 8483, 8619, 9945, 14365, 19461, 22455, 25449, 25857, 32435, 42415, 43095, 58383, 76347, 84331, 97305, 110279, 127245, 129285, 252993, 291915, 330837, 381735, 421655, 551395, 758979, 992511, 1264965, 1433627, 1654185, 3794895, 4300881, 4962555, 7168135, 12902643, 21504405, 64513215]

約数ペア:

[(1, 64513215), (3, 21504405), (5, 12902643), (9, 7168135), (13, 4962555), (15, 4300881), (17, 3794895), (39, 1654185), (45, 1433627), (51, 1264965), (65, 992511), (85, 758979), (117, 551395), (153, 421655), (169, 381735), (195, 330837), (221, 291915), (255, 252993), (499, 129285), (507, 127245), (585, 110279), (663, 97305), (765, 84331), (845, 76347), (1105, 58383), (1497, 43095), (1521, 42415), (1989, 32435), (2495, 25857), (2535, 25449), (2873, 22455), (3315, 19461), (4491, 14365), (6487, 9945), (7485, 8619), (7605, 8483)]