405692456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{63949}}^1$

素因数の和:64029

約数の個数: 32

約数和(自身を含む): 832629000

約数和(自身を除く): 426936544

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 6344, 63949, 127898, 255796, 511592, 831337, 1662674, 3325348, 3900889, 6650696, 7801778, 15603556, 31207112, 50711557, 101423114, 202846228, 405692456]

約数ペア:

[(1, 405692456), (2, 202846228), (4, 101423114), (8, 50711557), (13, 31207112), (26, 15603556), (52, 7801778), (61, 6650696), (104, 3900889), (122, 3325348), (244, 1662674), (488, 831337), (793, 511592), (1586, 255796), (3172, 127898), (6344, 63949)]