20312857552

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{881}}^1\times {\mathrm{110849}}^1$

素因数の和:111751

約数の個数: 40

約数和(自身を含む): 42432049800

約数和(自身を除く): 22119192248

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 881, 1762, 3524, 7048, 11453, 14096, 22906, 45812, 91624, 110849, 183248, 221698, 443396, 886792, 1441037, 1773584, 2882074, 5764148, 11528296, 23056592, 97657969, 195315938, 390631876, 781263752, 1269553597, 1562527504, 2539107194, 5078214388, 10156428776, 20312857552]

約数ペア:

[(1, 20312857552), (2, 10156428776), (4, 5078214388), (8, 2539107194), (13, 1562527504), (16, 1269553597), (26, 781263752), (52, 390631876), (104, 195315938), (208, 97657969), (881, 23056592), (1762, 11528296), (3524, 5764148), (7048, 2882074), (11453, 1773584), (14096, 1441037), (22906, 886792), (45812, 443396), (91624, 221698), (110849, 183248)]