20563305

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 39690240

約数和(自身を除く): 19126935

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 67, 79, 105, 111, 185, 201, 237, 259, 335, 395, 469, 553, 555, 777, 1005, 1185, 1295, 1407, 1659, 2345, 2479, 2765, 2923, 3885, 5293, 7035, 7437, 8295, 8769, 12395, 14615, 15879, 17353, 20461, 26465, 37051, 37185, 43845, 52059, 61383, 79395, 86765, 102305, 111153, 185255, 195841, 260295, 306915, 555765, 587523, 979205, 1370887, 2937615, 4112661, 6854435, 20563305]

約数ペア:

[(1, 20563305), (3, 6854435), (5, 4112661), (7, 2937615), (15, 1370887), (21, 979205), (35, 587523), (37, 555765), (67, 306915), (79, 260295), (105, 195841), (111, 185255), (185, 111153), (201, 102305), (237, 86765), (259, 79395), (335, 61383), (395, 52059), (469, 43845), (553, 37185), (555, 37051), (777, 26465), (1005, 20461), (1185, 17353), (1295, 15879), (1407, 14615), (1659, 12395), (2345, 8769), (2479, 8295), (2765, 7437), (2923, 7035), (3885, 5293)]