856724990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1\times {\mathrm{907}}^1$

素因数の和:1233

約数の個数: 64

約数和(自身を含む): 1744754688

約数和(自身を除く): 888029698

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 277, 310, 341, 554, 682, 907, 1385, 1705, 1814, 2770, 3047, 3410, 4535, 6094, 8587, 9070, 9977, 15235, 17174, 19954, 28117, 30470, 42935, 49885, 56234, 85870, 94457, 99770, 140585, 188914, 251239, 281170, 309287, 472285, 502478, 618574, 944570, 1256195, 1546435, 2512390, 2763629, 3092870, 5527258, 7788409, 13818145, 15576818, 27636290, 38942045, 77884090, 85672499, 171344998, 428362495, 856724990]

約数ペア:

[(1, 856724990), (2, 428362495), (5, 171344998), (10, 85672499), (11, 77884090), (22, 38942045), (31, 27636290), (55, 15576818), (62, 13818145), (110, 7788409), (155, 5527258), (277, 3092870), (310, 2763629), (341, 2512390), (554, 1546435), (682, 1256195), (907, 944570), (1385, 618574), (1705, 502478), (1814, 472285), (2770, 309287), (3047, 281170), (3410, 251239), (4535, 188914), (6094, 140585), (8587, 99770), (9070, 94457), (9977, 85870), (15235, 56234), (17174, 49885), (19954, 42935), (28117, 30470)]