31178128

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{20089}}^1$

素因数の和:20194

約数の個数: 20

約数和(自身を含む): 61033420

約数和(自身を除く): 29855292

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 20089, 40178, 80356, 160712, 321424, 1948633, 3897266, 7794532, 15589064, 31178128]

約数ペア:

[(1, 31178128), (2, 15589064), (4, 7794532), (8, 3897266), (16, 1948633), (97, 321424), (194, 160712), (388, 80356), (776, 40178), (1552, 20089)]