164015420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{2083}}^1$

素因数の和:2250

約数の個数: 48

約数和(自身を含む): 358514688

約数和(自身を除く): 194499268

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 1270, 2083, 2540, 3937, 4166, 7874, 8332, 10415, 15748, 19685, 20830, 39370, 41660, 64573, 78740, 129146, 258292, 264541, 322865, 529082, 645730, 1058164, 1291460, 1322705, 2645410, 5290820, 8200771, 16401542, 32803084, 41003855, 82007710, 164015420]

約数ペア:

[(1, 164015420), (2, 82007710), (4, 41003855), (5, 32803084), (10, 16401542), (20, 8200771), (31, 5290820), (62, 2645410), (124, 1322705), (127, 1291460), (155, 1058164), (254, 645730), (310, 529082), (508, 322865), (620, 264541), (635, 258292), (1270, 129146), (2083, 78740), (2540, 64573), (3937, 41660), (4166, 39370), (7874, 20830), (8332, 19685), (10415, 15748)]