25077975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 47965680

約数和(自身を除く): 22887705

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 89, 195, 221, 255, 267, 289, 325, 425, 445, 663, 867, 975, 1105, 1157, 1275, 1335, 1445, 1513, 2225, 3315, 3471, 3757, 4335, 4539, 5525, 5785, 6675, 7225, 7565, 11271, 16575, 17355, 18785, 19669, 21675, 22695, 25721, 28925, 37825, 56355, 59007, 77163, 86775, 93925, 98345, 113475, 128605, 281775, 295035, 334373, 385815, 491725, 643025, 1003119, 1475175, 1671865, 1929075, 5015595, 8359325, 25077975]

約数ペア:

[(1, 25077975), (3, 8359325), (5, 5015595), (13, 1929075), (15, 1671865), (17, 1475175), (25, 1003119), (39, 643025), (51, 491725), (65, 385815), (75, 334373), (85, 295035), (89, 281775), (195, 128605), (221, 113475), (255, 98345), (267, 93925), (289, 86775), (325, 77163), (425, 59007), (445, 56355), (663, 37825), (867, 28925), (975, 25721), (1105, 22695), (1157, 21675), (1275, 19669), (1335, 18785), (1445, 17355), (1513, 16575), (2225, 11271), (3315, 7565), (3471, 7225), (3757, 6675), (4335, 5785), (4539, 5525)]