20787468546

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1\times {\mathrm{7507}}^1$

素因数の和:7927

約数の個数: 64

約数和(自身を含む): 45287294976

約数和(自身を除く): 24499826430

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 131, 262, 271, 393, 542, 786, 813, 1626, 1703, 3406, 3523, 5109, 7046, 7507, 10218, 10569, 15014, 21138, 22521, 35501, 45042, 71002, 97591, 106503, 195182, 213006, 292773, 461513, 585546, 923026, 983417, 1384539, 1966834, 2034397, 2769078, 2950251, 4068794, 5900502, 6103191, 12206382, 12784421, 25568842, 26447161, 38353263, 52894322, 76706526, 79341483, 158682966, 266506007, 533012014, 799518021, 1599036042, 3464578091, 6929156182, 10393734273, 20787468546]

約数ペア:

[(1, 20787468546), (2, 10393734273), (3, 6929156182), (6, 3464578091), (13, 1599036042), (26, 799518021), (39, 533012014), (78, 266506007), (131, 158682966), (262, 79341483), (271, 76706526), (393, 52894322), (542, 38353263), (786, 26447161), (813, 25568842), (1626, 12784421), (1703, 12206382), (3406, 6103191), (3523, 5900502), (5109, 4068794), (7046, 2950251), (7507, 2769078), (10218, 2034397), (10569, 1966834), (15014, 1384539), (21138, 983417), (22521, 923026), (35501, 585546), (45042, 461513), (71002, 292773), (97591, 213006), (106503, 195182)]