1279883345

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1\times {\mathrm{887}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 1682795520

約数和(自身を除く): 402912175

約数列:

[1, 5, 13, 65, 79, 281, 395, 887, 1027, 1405, 3653, 4435, 5135, 11531, 18265, 22199, 57655, 70073, 110995, 249247, 288587, 350365, 910949, 1246235, 1442935, 3240211, 4554745, 16201055, 19690513, 98452565, 255976669, 1279883345]

約数ペア:

[(1, 1279883345), (5, 255976669), (13, 98452565), (65, 19690513), (79, 16201055), (281, 4554745), (395, 3240211), (887, 1442935), (1027, 1246235), (1405, 910949), (3653, 350365), (4435, 288587), (5135, 249247), (11531, 110995), (18265, 70073), (22199, 57655)]