205108568

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{569}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 453902400

約数和(自身を除く): 248793832

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 157, 164, 287, 314, 328, 569, 574, 628, 1099, 1138, 1148, 1256, 2198, 2276, 2296, 3983, 4396, 4552, 6437, 7966, 8792, 12874, 15932, 23329, 25748, 31864, 45059, 46658, 51496, 89333, 90118, 93316, 163303, 178666, 180236, 186632, 326606, 357332, 360472, 625331, 653212, 714664, 1250662, 1306424, 2501324, 3662653, 5002648, 7325306, 14650612, 25638571, 29301224, 51277142, 102554284, 205108568]

約数ペア:

[(1, 205108568), (2, 102554284), (4, 51277142), (7, 29301224), (8, 25638571), (14, 14650612), (28, 7325306), (41, 5002648), (56, 3662653), (82, 2501324), (157, 1306424), (164, 1250662), (287, 714664), (314, 653212), (328, 625331), (569, 360472), (574, 357332), (628, 326606), (1099, 186632), (1138, 180236), (1148, 178666), (1256, 163303), (2198, 93316), (2276, 90118), (2296, 89333), (3983, 51496), (4396, 46658), (4552, 45059), (6437, 31864), (7966, 25748), (8792, 23329), (12874, 15932)]