20512787728

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{727}}^1\times {\mathrm{76673}}^1$

素因数の和:77431

約数の個数: 40

約数和(自身を含む): 41529091968

約数和(自身を除く): 21016304240

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 727, 1454, 2908, 5816, 11632, 16721, 33442, 66884, 76673, 133768, 153346, 267536, 306692, 613384, 1226768, 1763479, 3526958, 7053916, 14107832, 28215664, 55741271, 111482542, 222965084, 445930168, 891860336, 1282049233, 2564098466, 5128196932, 10256393864, 20512787728]

約数ペア:

[(1, 20512787728), (2, 10256393864), (4, 5128196932), (8, 2564098466), (16, 1282049233), (23, 891860336), (46, 445930168), (92, 222965084), (184, 111482542), (368, 55741271), (727, 28215664), (1454, 14107832), (2908, 7053916), (5816, 3526958), (11632, 1763479), (16721, 1226768), (33442, 613384), (66884, 306692), (76673, 267536), (133768, 153346)]