19941623888

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{242057}}^1$

素因数の和:242355

約数の個数: 40

約数和(自身を含む): 40820661120

約数和(自身を除く): 20879037232

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 271, 304, 542, 1084, 2168, 4336, 5149, 10298, 20596, 41192, 82384, 242057, 484114, 968228, 1936456, 3872912, 4599083, 9198166, 18396332, 36792664, 65597447, 73585328, 131194894, 262389788, 524779576, 1049559152, 1246351493, 2492702986, 4985405972, 9970811944, 19941623888]

約数ペア:

[(1, 19941623888), (2, 9970811944), (4, 4985405972), (8, 2492702986), (16, 1246351493), (19, 1049559152), (38, 524779576), (76, 262389788), (152, 131194894), (271, 73585328), (304, 65597447), (542, 36792664), (1084, 18396332), (2168, 9198166), (4336, 4599083), (5149, 3872912), (10298, 1936456), (20596, 968228), (41192, 484114), (82384, 242057)]