81697385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 125024256

約数和(自身を除く): 43326871

約数列:

[1, 5, 7, 11, 35, 55, 77, 101, 121, 191, 385, 505, 605, 707, 847, 955, 1111, 1337, 2101, 3535, 4235, 5555, 6685, 7777, 10505, 12221, 14707, 19291, 23111, 38885, 61105, 73535, 85547, 96455, 115555, 135037, 161777, 212201, 427735, 675185, 808885, 1061005, 1485407, 2334211, 7427035, 11671055, 16339477, 81697385]

約数ペア:

[(1, 81697385), (5, 16339477), (7, 11671055), (11, 7427035), (35, 2334211), (55, 1485407), (77, 1061005), (101, 808885), (121, 675185), (191, 427735), (385, 212201), (505, 161777), (605, 135037), (707, 115555), (847, 96455), (955, 85547), (1111, 73535), (1337, 61105), (2101, 38885), (3535, 23111), (4235, 19291), (5555, 14707), (6685, 12221), (7777, 10505)]