20156510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 42799104

約数和(自身を除く): 22642594

約数列:

[1, 2, 5, 10, 11, 22, 23, 31, 46, 55, 62, 110, 115, 155, 230, 253, 257, 310, 341, 506, 514, 682, 713, 1265, 1285, 1426, 1705, 2530, 2570, 2827, 3410, 3565, 5654, 5911, 7130, 7843, 7967, 11822, 14135, 15686, 15934, 28270, 29555, 39215, 39835, 59110, 65021, 78430, 79670, 87637, 130042, 175274, 183241, 325105, 366482, 438185, 650210, 876370, 916205, 1832410, 2015651, 4031302, 10078255, 20156510]

約数ペア:

[(1, 20156510), (2, 10078255), (5, 4031302), (10, 2015651), (11, 1832410), (22, 916205), (23, 876370), (31, 650210), (46, 438185), (55, 366482), (62, 325105), (110, 183241), (115, 175274), (155, 130042), (230, 87637), (253, 79670), (257, 78430), (310, 65021), (341, 59110), (506, 39835), (514, 39215), (682, 29555), (713, 28270), (1265, 15934), (1285, 15686), (1426, 14135), (1705, 11822), (2530, 7967), (2570, 7843), (2827, 7130), (3410, 5911), (3565, 5654)]