20888970575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^3\times {\mathrm{15461}}^1$

素因数の和:15533

約数の個数: 48

約数和(自身を含む): 30024730080

約数和(自身を除く): 9135759505

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 289, 425, 935, 1445, 3179, 4675, 4913, 7225, 15461, 15895, 24565, 54043, 77305, 79475, 122825, 170071, 262837, 270215, 386525, 850355, 1314185, 1351075, 2891207, 4251775, 4468229, 6570925, 14456035, 22341145, 49150519, 72280175, 75959893, 111705725, 245752595, 379799465, 835558823, 1228762975, 1898997325, 4177794115, 20888970575]

約数ペア:

[(1, 20888970575), (5, 4177794115), (11, 1898997325), (17, 1228762975), (25, 835558823), (55, 379799465), (85, 245752595), (187, 111705725), (275, 75959893), (289, 72280175), (425, 49150519), (935, 22341145), (1445, 14456035), (3179, 6570925), (4675, 4468229), (4913, 4251775), (7225, 2891207), (15461, 1351075), (15895, 1314185), (24565, 850355), (54043, 386525), (77305, 270215), (79475, 262837), (122825, 170071)]