20481570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2557}}^1$

素因数の和:2659

約数の個数: 48

約数和(自身を含む): 53871480

約数和(自身を除く): 33389910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 2557, 2670, 4005, 5114, 7671, 8010, 12785, 15342, 23013, 25570, 38355, 46026, 76710, 115065, 227573, 230130, 455146, 682719, 1137865, 1365438, 2048157, 2275730, 3413595, 4096314, 6827190, 10240785, 20481570]

約数ペア:

[(1, 20481570), (2, 10240785), (3, 6827190), (5, 4096314), (6, 3413595), (9, 2275730), (10, 2048157), (15, 1365438), (18, 1137865), (30, 682719), (45, 455146), (89, 230130), (90, 227573), (178, 115065), (267, 76710), (445, 46026), (534, 38355), (801, 25570), (890, 23013), (1335, 15342), (1602, 12785), (2557, 8010), (2670, 7671), (4005, 5114)]