20015408

素因数分解:

$2^4\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1033}}^1$

素因数の和:1221

約数の個数: 40

約数和(自身を含む): 44619168

約数和(自身を除く): 24603760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 173, 346, 692, 1033, 1211, 1384, 2066, 2422, 2768, 4132, 4844, 7231, 8264, 9688, 14462, 16528, 19376, 28924, 57848, 115696, 178709, 357418, 714836, 1250963, 1429672, 2501926, 2859344, 5003852, 10007704, 20015408]

約数ペア:

[(1, 20015408), (2, 10007704), (4, 5003852), (7, 2859344), (8, 2501926), (14, 1429672), (16, 1250963), (28, 714836), (56, 357418), (112, 178709), (173, 115696), (346, 57848), (692, 28924), (1033, 19376), (1211, 16528), (1384, 14462), (2066, 9688), (2422, 8264), (2768, 7231), (4132, 4844)]