1640561168

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{8087}}^1$

素因数の和:8535

約数の個数: 40

約数和(自身を含む): 3289551360

約数和(自身を除く): 1648990192

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 409, 496, 818, 1636, 3272, 6544, 8087, 12679, 16174, 25358, 32348, 50716, 64696, 101432, 129392, 202864, 250697, 501394, 1002788, 2005576, 3307583, 4011152, 6615166, 13230332, 26460664, 52921328, 102535073, 205070146, 410140292, 820280584, 1640561168]

約数ペア:

[(1, 1640561168), (2, 820280584), (4, 410140292), (8, 205070146), (16, 102535073), (31, 52921328), (62, 26460664), (124, 13230332), (248, 6615166), (409, 4011152), (496, 3307583), (818, 2005576), (1636, 1002788), (3272, 501394), (6544, 250697), (8087, 202864), (12679, 129392), (16174, 101432), (25358, 64696), (32348, 50716)]