215696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:99

約数の個数: 40

約数和(自身を含む): 484344

約数和(自身を除く): 268648

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 61, 68, 104, 122, 136, 208, 221, 244, 272, 442, 488, 793, 884, 976, 1037, 1586, 1768, 2074, 3172, 3536, 4148, 6344, 8296, 12688, 13481, 16592, 26962, 53924, 107848, 215696]

約数ペア:

[(1, 215696), (2, 107848), (4, 53924), (8, 26962), (13, 16592), (16, 13481), (17, 12688), (26, 8296), (34, 6344), (52, 4148), (61, 3536), (68, 3172), (104, 2074), (122, 1768), (136, 1586), (208, 1037), (221, 976), (244, 884), (272, 793), (442, 488)]