20398744

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{991}}^1$

素因数の和:1111

約数の個数: 32

約数和(自身を含む): 39997440

約数和(自身を除く): 19598696

約数列:

[1, 2, 4, 8, 31, 62, 83, 124, 166, 248, 332, 664, 991, 1982, 2573, 3964, 5146, 7928, 10292, 20584, 30721, 61442, 82253, 122884, 164506, 245768, 329012, 658024, 2549843, 5099686, 10199372, 20398744]

約数ペア:

[(1, 20398744), (2, 10199372), (4, 5099686), (8, 2549843), (31, 658024), (62, 329012), (83, 245768), (124, 164506), (166, 122884), (248, 82253), (332, 61442), (664, 30721), (991, 20584), (1982, 10292), (2573, 7928), (3964, 5146)]