86644000

素因数分解:

$2^5\times 5^3\times {\mathrm{21661}}^1$

素因数の和:21686

約数の個数: 48

約数和(自身を含む): 212894136

約数和(自身を除く): 126250136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 21661, 43322, 86644, 108305, 173288, 216610, 346576, 433220, 541525, 693152, 866440, 1083050, 1732880, 2166100, 2707625, 3465760, 4332200, 5415250, 8664400, 10830500, 17328800, 21661000, 43322000, 86644000]

約数ペア:

[(1, 86644000), (2, 43322000), (4, 21661000), (5, 17328800), (8, 10830500), (10, 8664400), (16, 5415250), (20, 4332200), (25, 3465760), (32, 2707625), (40, 2166100), (50, 1732880), (80, 1083050), (100, 866440), (125, 693152), (160, 541525), (200, 433220), (250, 346576), (400, 216610), (500, 173288), (800, 108305), (1000, 86644), (2000, 43322), (4000, 21661)]