20002444

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{643}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 44142336

約数和(自身を除く): 24139892

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 101, 154, 202, 308, 404, 643, 707, 1111, 1286, 1414, 2222, 2572, 2828, 4444, 4501, 7073, 7777, 9002, 14146, 15554, 18004, 28292, 31108, 49511, 64943, 99022, 129886, 198044, 259772, 454601, 714373, 909202, 1428746, 1818404, 2857492, 5000611, 10001222, 20002444]

約数ペア:

[(1, 20002444), (2, 10001222), (4, 5000611), (7, 2857492), (11, 1818404), (14, 1428746), (22, 909202), (28, 714373), (44, 454601), (77, 259772), (101, 198044), (154, 129886), (202, 99022), (308, 64943), (404, 49511), (643, 31108), (707, 28292), (1111, 18004), (1286, 15554), (1414, 14146), (2222, 9002), (2572, 7777), (2828, 7073), (4444, 4501)]