263181568

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2551}}^1$

素因数の和:2611

約数の個数: 72

約数和(自身を含む): 584224256

約数和(自身を除く): 321042688

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 806, 832, 992, 1612, 1664, 1984, 2551, 3224, 3328, 3968, 5102, 6448, 7936, 10204, 12896, 20408, 25792, 33163, 40816, 51584, 66326, 79081, 81632, 103168, 132652, 158162, 163264, 265304, 316324, 326528, 530608, 632648, 653056, 1028053, 1061216, 1265296, 2056106, 2122432, 2530592, 4112212, 4244864, 5061184, 8224424, 8489728, 10122368, 16448848, 20244736, 32897696, 65795392, 131590784, 263181568]

約数ペア:

[(1, 263181568), (2, 131590784), (4, 65795392), (8, 32897696), (13, 20244736), (16, 16448848), (26, 10122368), (31, 8489728), (32, 8224424), (52, 5061184), (62, 4244864), (64, 4112212), (104, 2530592), (124, 2122432), (128, 2056106), (208, 1265296), (248, 1061216), (256, 1028053), (403, 653056), (416, 632648), (496, 530608), (806, 326528), (832, 316324), (992, 265304), (1612, 163264), (1664, 158162), (1984, 132652), (2551, 103168), (3224, 81632), (3328, 79081), (3968, 66326), (5102, 51584), (6448, 40816), (7936, 33163), (10204, 25792), (12896, 20408)]