64725872

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{227}}^1\times {\mathrm{251}}^1$

素因数の和:557

約数の個数: 40

約数和(自身を含む): 128241792

約数和(自身を除く): 63515920

約数列:

[1, 2, 4, 8, 16, 71, 142, 227, 251, 284, 454, 502, 568, 908, 1004, 1136, 1816, 2008, 3632, 4016, 16117, 17821, 32234, 35642, 56977, 64468, 71284, 113954, 128936, 142568, 227908, 257872, 285136, 455816, 911632, 4045367, 8090734, 16181468, 32362936, 64725872]

約数ペア:

[(1, 64725872), (2, 32362936), (4, 16181468), (8, 8090734), (16, 4045367), (71, 911632), (142, 455816), (227, 285136), (251, 257872), (284, 227908), (454, 142568), (502, 128936), (568, 113954), (908, 71284), (1004, 64468), (1136, 56977), (1816, 35642), (2008, 32234), (3632, 17821), (4016, 16117)]