209264405

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{1163}}^1$

素因数の和:1325

約数の個数: 32

約数和(自身を含む): 295674624

約数和(自身を除く): 86410219

約数列:

[1, 5, 7, 35, 53, 97, 265, 371, 485, 679, 1163, 1855, 3395, 5141, 5815, 8141, 25705, 35987, 40705, 61639, 112811, 179935, 308195, 431473, 564055, 789677, 2157365, 3948385, 5978983, 29894915, 41852881, 209264405]

約数ペア:

[(1, 209264405), (5, 41852881), (7, 29894915), (35, 5978983), (53, 3948385), (97, 2157365), (265, 789677), (371, 564055), (485, 431473), (679, 308195), (1163, 179935), (1855, 112811), (3395, 61639), (5141, 40705), (5815, 35987), (8141, 25705)]