25120815

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 20498385

約数列:

[1, 3, 5, 15, 17, 29, 43, 51, 79, 85, 87, 129, 145, 215, 237, 255, 395, 435, 493, 645, 731, 1185, 1247, 1343, 1479, 2193, 2291, 2465, 3397, 3655, 3741, 4029, 6235, 6715, 6873, 7395, 10191, 10965, 11455, 16985, 18705, 20145, 21199, 34365, 38947, 50955, 57749, 63597, 98513, 105995, 116841, 173247, 194735, 288745, 295539, 317985, 492565, 584205, 866235, 1477695, 1674721, 5024163, 8373605, 25120815]

約数ペア:

[(1, 25120815), (3, 8373605), (5, 5024163), (15, 1674721), (17, 1477695), (29, 866235), (43, 584205), (51, 492565), (79, 317985), (85, 295539), (87, 288745), (129, 194735), (145, 173247), (215, 116841), (237, 105995), (255, 98513), (395, 63597), (435, 57749), (493, 50955), (645, 38947), (731, 34365), (1185, 21199), (1247, 20145), (1343, 18705), (1479, 16985), (2193, 11455), (2291, 10965), (2465, 10191), (3397, 7395), (3655, 6873), (3741, 6715), (4029, 6235)]