20442656

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{313}}^1$

素因数の和:493

約数の個数: 48

約数和(自身を含む): 43757784

約数和(自身を除く): 23315128

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 157, 208, 313, 314, 416, 626, 628, 1252, 1256, 2041, 2504, 2512, 4069, 4082, 5008, 5024, 8138, 8164, 10016, 16276, 16328, 32552, 32656, 49141, 65104, 65312, 98282, 130208, 196564, 393128, 638833, 786256, 1277666, 1572512, 2555332, 5110664, 10221328, 20442656]

約数ペア:

[(1, 20442656), (2, 10221328), (4, 5110664), (8, 2555332), (13, 1572512), (16, 1277666), (26, 786256), (32, 638833), (52, 393128), (104, 196564), (157, 130208), (208, 98282), (313, 65312), (314, 65104), (416, 49141), (626, 32656), (628, 32552), (1252, 16328), (1256, 16276), (2041, 10016), (2504, 8164), (2512, 8138), (4069, 5024), (4082, 5008)]