858650980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{7949}}^1$

素因数の和:8460

約数の個数: 48

約数和(自身を含む): 1971345600

約数和(自身を除く): 1112694620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 491, 982, 1964, 2455, 4910, 5401, 7949, 9820, 10802, 15898, 21604, 27005, 31796, 39745, 54010, 79490, 87439, 108020, 158980, 174878, 349756, 437195, 874390, 1748780, 3902959, 7805918, 15611836, 19514795, 39029590, 42932549, 78059180, 85865098, 171730196, 214662745, 429325490, 858650980]

約数ペア:

[(1, 858650980), (2, 429325490), (4, 214662745), (5, 171730196), (10, 85865098), (11, 78059180), (20, 42932549), (22, 39029590), (44, 19514795), (55, 15611836), (110, 7805918), (220, 3902959), (491, 1748780), (982, 874390), (1964, 437195), (2455, 349756), (4910, 174878), (5401, 158980), (7949, 108020), (9820, 87439), (10802, 79490), (15898, 54010), (21604, 39745), (27005, 31796)]