261004016

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179261}}^1$

素因数の和:179289

約数の個数: 40

約数和(自身を含む): 622397664

約数和(自身を除く): 361393648

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 179261, 358522, 717044, 1254827, 1434088, 2330393, 2509654, 2868176, 4660786, 5019308, 9321572, 10038616, 16312751, 18643144, 20077232, 32625502, 37286288, 65251004, 130502008, 261004016]

約数ペア:

[(1, 261004016), (2, 130502008), (4, 65251004), (7, 37286288), (8, 32625502), (13, 20077232), (14, 18643144), (16, 16312751), (26, 10038616), (28, 9321572), (52, 5019308), (56, 4660786), (91, 2868176), (104, 2509654), (112, 2330393), (182, 1434088), (208, 1254827), (364, 717044), (728, 358522), (1456, 179261)]