388585856740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1279}}^1\times {\mathrm{139367}}^1$

素因数の和:140764

約数の個数: 48

約数和(自身を含む): 824166604800

約数和(自身を除く): 435580748060

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 1279, 2180, 2558, 5116, 6395, 12790, 25580, 139367, 139411, 278734, 278822, 557468, 557644, 696835, 697055, 1393670, 1394110, 2787340, 2788220, 15191003, 30382006, 60764012, 75955015, 151910030, 178250393, 303820060, 356500786, 713001572, 891251965, 1782503930, 3565007860, 19429292837, 38858585674, 77717171348, 97146464185, 194292928370, 388585856740]

約数ペア:

[(1, 388585856740), (2, 194292928370), (4, 97146464185), (5, 77717171348), (10, 38858585674), (20, 19429292837), (109, 3565007860), (218, 1782503930), (436, 891251965), (545, 713001572), (1090, 356500786), (1279, 303820060), (2180, 178250393), (2558, 151910030), (5116, 75955015), (6395, 60764012), (12790, 30382006), (25580, 15191003), (139367, 2788220), (139411, 2787340), (278734, 1394110), (278822, 1393670), (557468, 697055), (557644, 696835)]