28179305

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1381}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 42985728

約数和(自身を除く): 14806423

約数列:

[1, 5, 7, 11, 35, 53, 55, 77, 265, 371, 385, 583, 1381, 1855, 2915, 4081, 6905, 9667, 15191, 20405, 48335, 73193, 75955, 106337, 365965, 512351, 531685, 805123, 2561755, 4025615, 5635861, 28179305]

約数ペア:

[(1, 28179305), (5, 5635861), (7, 4025615), (11, 2561755), (35, 805123), (53, 531685), (55, 512351), (77, 365965), (265, 106337), (371, 75955), (385, 73193), (583, 48335), (1381, 20405), (1855, 15191), (2915, 9667), (4081, 6905)]