20209168

素因数分解:

$2^4\times 7^2\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:344

約数の個数: 60

約数和(自身を含む): 46118700

約数和(自身を除く): 25909532

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 149, 173, 196, 298, 346, 392, 596, 692, 784, 1043, 1192, 1211, 1384, 2086, 2384, 2422, 2768, 4172, 4844, 7301, 8344, 8477, 9688, 14602, 16688, 16954, 19376, 25777, 29204, 33908, 51554, 58408, 67816, 103108, 116816, 135632, 180439, 206216, 360878, 412432, 721756, 1263073, 1443512, 2526146, 2887024, 5052292, 10104584, 20209168]

約数ペア:

[(1, 20209168), (2, 10104584), (4, 5052292), (7, 2887024), (8, 2526146), (14, 1443512), (16, 1263073), (28, 721756), (49, 412432), (56, 360878), (98, 206216), (112, 180439), (149, 135632), (173, 116816), (196, 103108), (298, 67816), (346, 58408), (392, 51554), (596, 33908), (692, 29204), (784, 25777), (1043, 19376), (1192, 16954), (1211, 16688), (1384, 14602), (2086, 9688), (2384, 8477), (2422, 8344), (2768, 7301), (4172, 4844)]