261018512

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{8627}}^1$

素因数の和:8727

約数の個数: 40

約数和(自身を含む): 530656512

約数和(自身を除く): 269638000

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 122, 124, 244, 248, 488, 496, 976, 1891, 3782, 7564, 8627, 15128, 17254, 30256, 34508, 69016, 138032, 267437, 526247, 534874, 1052494, 1069748, 2104988, 2139496, 4209976, 4278992, 8419952, 16313657, 32627314, 65254628, 130509256, 261018512]

約数ペア:

[(1, 261018512), (2, 130509256), (4, 65254628), (8, 32627314), (16, 16313657), (31, 8419952), (61, 4278992), (62, 4209976), (122, 2139496), (124, 2104988), (244, 1069748), (248, 1052494), (488, 534874), (496, 526247), (976, 267437), (1891, 138032), (3782, 69016), (7564, 34508), (8627, 30256), (15128, 17254)]