51336280

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 118752480

約数和(自身を除く): 67416200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 101, 131, 194, 202, 262, 388, 404, 485, 505, 524, 655, 776, 808, 970, 1010, 1048, 1310, 1940, 2020, 2620, 3880, 4040, 5240, 9797, 12707, 13231, 19594, 25414, 26462, 39188, 48985, 50828, 52924, 63535, 66155, 78376, 97970, 101656, 105848, 127070, 132310, 195940, 254140, 264620, 391880, 508280, 529240, 1283407, 2566814, 5133628, 6417035, 10267256, 12834070, 25668140, 51336280]

約数ペア:

[(1, 51336280), (2, 25668140), (4, 12834070), (5, 10267256), (8, 6417035), (10, 5133628), (20, 2566814), (40, 1283407), (97, 529240), (101, 508280), (131, 391880), (194, 264620), (202, 254140), (262, 195940), (388, 132310), (404, 127070), (485, 105848), (505, 101656), (524, 97970), (655, 78376), (776, 66155), (808, 63535), (970, 52924), (1010, 50828), (1048, 48985), (1310, 39188), (1940, 26462), (2020, 25414), (2620, 19594), (3880, 13231), (4040, 12707), (5240, 9797)]