81234740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1601}}^1$

素因数の和:1712

約数の個数: 48

約数和(自身を含む): 177629760

約数和(自身を除く): 96395020

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 172, 215, 236, 295, 430, 590, 860, 1180, 1601, 2537, 3202, 5074, 6404, 8005, 10148, 12685, 16010, 25370, 32020, 50740, 68843, 94459, 137686, 188918, 275372, 344215, 377836, 472295, 688430, 944590, 1376860, 1889180, 4061737, 8123474, 16246948, 20308685, 40617370, 81234740]

約数ペア:

[(1, 81234740), (2, 40617370), (4, 20308685), (5, 16246948), (10, 8123474), (20, 4061737), (43, 1889180), (59, 1376860), (86, 944590), (118, 688430), (172, 472295), (215, 377836), (236, 344215), (295, 275372), (430, 188918), (590, 137686), (860, 94459), (1180, 68843), (1601, 50740), (2537, 32020), (3202, 25370), (5074, 16010), (6404, 12685), (8005, 10148)]