12866240

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1345

約数の個数: 56

約数和(自身を含む): 31650432

約数和(自身を除く): 18784192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1297, 1984, 2480, 2594, 4960, 5188, 6485, 9920, 10376, 12970, 20752, 25940, 40207, 41504, 51880, 80414, 83008, 103760, 160828, 201035, 207520, 321656, 402070, 415040, 643312, 804140, 1286624, 1608280, 2573248, 3216560, 6433120, 12866240]

約数ペア:

[(1, 12866240), (2, 6433120), (4, 3216560), (5, 2573248), (8, 1608280), (10, 1286624), (16, 804140), (20, 643312), (31, 415040), (32, 402070), (40, 321656), (62, 207520), (64, 201035), (80, 160828), (124, 103760), (155, 83008), (160, 80414), (248, 51880), (310, 41504), (320, 40207), (496, 25940), (620, 20752), (992, 12970), (1240, 10376), (1297, 9920), (1984, 6485), (2480, 5188), (2594, 4960)]