20519704

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{241}}^1\times {\mathrm{367}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 40075200

約数和(自身を除く): 19555496

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 241, 367, 482, 734, 964, 1468, 1928, 2936, 6989, 10643, 13978, 21286, 27956, 42572, 55912, 85144, 88447, 176894, 353788, 707576, 2564963, 5129926, 10259852, 20519704]

約数ペア:

[(1, 20519704), (2, 10259852), (4, 5129926), (8, 2564963), (29, 707576), (58, 353788), (116, 176894), (232, 88447), (241, 85144), (367, 55912), (482, 42572), (734, 27956), (964, 21286), (1468, 13978), (1928, 10643), (2936, 6989)]