25668140

素因数分解:

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

素因数の和:338

約数の個数: 48

約数和(自身を含む): 55417824

約数和(自身を除く): 29749684

約数列:

[1, 2, 4, 5, 10, 20, 97, 101, 131, 194, 202, 262, 388, 404, 485, 505, 524, 655, 970, 1010, 1310, 1940, 2020, 2620, 9797, 12707, 13231, 19594, 25414, 26462, 39188, 48985, 50828, 52924, 63535, 66155, 97970, 127070, 132310, 195940, 254140, 264620, 1283407, 2566814, 5133628, 6417035, 12834070, 25668140]

約数ペア:

[(1, 25668140), (2, 12834070), (4, 6417035), (5, 5133628), (10, 2566814), (20, 1283407), (97, 264620), (101, 254140), (131, 195940), (194, 132310), (202, 127070), (262, 97970), (388, 66155), (404, 63535), (485, 52924), (505, 50828), (524, 48985), (655, 39188), (970, 26462), (1010, 25414), (1310, 19594), (1940, 13231), (2020, 12707), (2620, 9797)]