55555565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 75264000

約数和(自身を除く): 19708435

約数列:

[1, 5, 13, 31, 65, 79, 155, 349, 395, 403, 1027, 1745, 2015, 2449, 4537, 5135, 10819, 12245, 22685, 27571, 31837, 54095, 137855, 140647, 159185, 358423, 703235, 854701, 1792115, 4273505, 11111113, 55555565]

約数ペア:

[(1, 55555565), (5, 11111113), (13, 4273505), (31, 1792115), (65, 854701), (79, 703235), (155, 358423), (349, 159185), (395, 140647), (403, 137855), (1027, 54095), (1745, 31837), (2015, 27571), (2449, 22685), (4537, 12245), (5135, 10819)]