15905356

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 31144960

約数和(自身を除く): 15239604

約数列:

[1, 2, 4, 19, 31, 38, 43, 62, 76, 86, 124, 157, 172, 314, 589, 628, 817, 1178, 1333, 1634, 2356, 2666, 2983, 3268, 4867, 5332, 5966, 6751, 9734, 11932, 13502, 19468, 25327, 27004, 50654, 92473, 101308, 128269, 184946, 209281, 256538, 369892, 418562, 513076, 837124, 3976339, 7952678, 15905356]

約数ペア:

[(1, 15905356), (2, 7952678), (4, 3976339), (19, 837124), (31, 513076), (38, 418562), (43, 369892), (62, 256538), (76, 209281), (86, 184946), (124, 128269), (157, 101308), (172, 92473), (314, 50654), (589, 27004), (628, 25327), (817, 19468), (1178, 13502), (1333, 11932), (1634, 9734), (2356, 6751), (2666, 5966), (2983, 5332), (3268, 4867)]