68720680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2957}}^1$

素因数の和:3058

約数の個数: 64

約数和(自身を含む): 178899840

約数和(自身を除く): 110179160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 83, 140, 166, 280, 332, 415, 581, 664, 830, 1162, 1660, 2324, 2905, 2957, 3320, 4648, 5810, 5914, 11620, 11828, 14785, 20699, 23240, 23656, 29570, 41398, 59140, 82796, 103495, 118280, 165592, 206990, 245431, 413980, 490862, 827960, 981724, 1227155, 1718017, 1963448, 2454310, 3436034, 4908620, 6872068, 8590085, 9817240, 13744136, 17180170, 34360340, 68720680]

約数ペア:

[(1, 68720680), (2, 34360340), (4, 17180170), (5, 13744136), (7, 9817240), (8, 8590085), (10, 6872068), (14, 4908620), (20, 3436034), (28, 2454310), (35, 1963448), (40, 1718017), (56, 1227155), (70, 981724), (83, 827960), (140, 490862), (166, 413980), (280, 245431), (332, 206990), (415, 165592), (581, 118280), (664, 103495), (830, 82796), (1162, 59140), (1660, 41398), (2324, 29570), (2905, 23656), (2957, 23240), (3320, 20699), (4648, 14785), (5810, 11828), (5914, 11620)]