20688032

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:321

約数の個数: 48

約数和(自身を含む): 42488712

約数和(自身を除く): 21800680

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 101, 148, 173, 202, 296, 346, 404, 592, 692, 808, 1184, 1384, 1616, 2768, 3232, 3737, 5536, 6401, 7474, 12802, 14948, 17473, 25604, 29896, 34946, 51208, 59792, 69892, 102416, 119584, 139784, 204832, 279568, 559136, 646501, 1293002, 2586004, 5172008, 10344016, 20688032]

約数ペア:

[(1, 20688032), (2, 10344016), (4, 5172008), (8, 2586004), (16, 1293002), (32, 646501), (37, 559136), (74, 279568), (101, 204832), (148, 139784), (173, 119584), (202, 102416), (296, 69892), (346, 59792), (404, 51208), (592, 34946), (692, 29896), (808, 25604), (1184, 17473), (1384, 14948), (1616, 12802), (2768, 7474), (3232, 6401), (3737, 5536)]