20312025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 36158400

約数和(自身を除く): 15846375

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 89, 179, 255, 267, 425, 445, 537, 895, 1275, 1335, 1513, 2225, 2685, 3043, 4475, 4539, 6675, 7565, 9129, 13425, 15215, 15931, 22695, 37825, 45645, 47793, 76075, 79655, 113475, 228225, 238965, 270827, 398275, 812481, 1194825, 1354135, 4062405, 6770675, 20312025]

約数ペア:

[(1, 20312025), (3, 6770675), (5, 4062405), (15, 1354135), (17, 1194825), (25, 812481), (51, 398275), (75, 270827), (85, 238965), (89, 228225), (179, 113475), (255, 79655), (267, 76075), (425, 47793), (445, 45645), (537, 37825), (895, 22695), (1275, 15931), (1335, 15215), (1513, 13425), (2225, 9129), (2685, 7565), (3043, 6675), (4475, 4539)]