20877901825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{761}}^1\times {\mathrm{1489}}^1$

素因数の和:2338

約数の個数: 48

約数和(自身を含む): 28720572480

約数和(自身を除く): 7842670655

約数列:

[1, 5, 11, 25, 55, 67, 275, 335, 737, 761, 1489, 1675, 3685, 3805, 7445, 8371, 16379, 18425, 19025, 37225, 41855, 50987, 81895, 99763, 209275, 254935, 409475, 498815, 560857, 1097393, 1133129, 1274675, 2494075, 2804285, 5486965, 5665645, 12464419, 14021425, 27434825, 28328225, 62322095, 75919643, 311610475, 379598215, 835116073, 1897991075, 4175580365, 20877901825]

約数ペア:

[(1, 20877901825), (5, 4175580365), (11, 1897991075), (25, 835116073), (55, 379598215), (67, 311610475), (275, 75919643), (335, 62322095), (737, 28328225), (761, 27434825), (1489, 14021425), (1675, 12464419), (3685, 5665645), (3805, 5486965), (7445, 2804285), (8371, 2494075), (16379, 1274675), (18425, 1133129), (19025, 1097393), (37225, 560857), (41855, 498815), (50987, 409475), (81895, 254935), (99763, 209275)]