20285656

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 39588480

約数和(自身を除く): 19302824

約数列:

[1, 2, 4, 8, 31, 62, 124, 157, 248, 314, 521, 628, 1042, 1256, 2084, 4168, 4867, 9734, 16151, 19468, 32302, 38936, 64604, 81797, 129208, 163594, 327188, 654376, 2535707, 5071414, 10142828, 20285656]

約数ペア:

[(1, 20285656), (2, 10142828), (4, 5071414), (8, 2535707), (31, 654376), (62, 327188), (124, 163594), (157, 129208), (248, 81797), (314, 64604), (521, 38936), (628, 32302), (1042, 19468), (1256, 16151), (2084, 9734), (4168, 4867)]