25540144

素因数分解:

$2^4\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1399}}^1$

素因数の和:1577

約数の個数: 40

約数和(自身を含む): 56940800

約数和(自身を除く): 31400656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 163, 326, 652, 1141, 1304, 1399, 2282, 2608, 2798, 4564, 5596, 9128, 9793, 11192, 18256, 19586, 22384, 39172, 78344, 156688, 228037, 456074, 912148, 1596259, 1824296, 3192518, 3648592, 6385036, 12770072, 25540144]

約数ペア:

[(1, 25540144), (2, 12770072), (4, 6385036), (7, 3648592), (8, 3192518), (14, 1824296), (16, 1596259), (28, 912148), (56, 456074), (112, 228037), (163, 156688), (326, 78344), (652, 39172), (1141, 22384), (1304, 19586), (1399, 18256), (2282, 11192), (2608, 9793), (2798, 9128), (4564, 5596)]