28709780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3527}}^1$

素因数の和:3584

約数の個数: 48

約数和(自身を含む): 67568256

約数和(自身を除く): 38858476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 3527, 4070, 7054, 8140, 14108, 17635, 35270, 38797, 70540, 77594, 130499, 155188, 193985, 260998, 387970, 521996, 652495, 775940, 1304990, 1435489, 2609980, 2870978, 5741956, 7177445, 14354890, 28709780]

約数ペア:

[(1, 28709780), (2, 14354890), (4, 7177445), (5, 5741956), (10, 2870978), (11, 2609980), (20, 1435489), (22, 1304990), (37, 775940), (44, 652495), (55, 521996), (74, 387970), (110, 260998), (148, 193985), (185, 155188), (220, 130499), (370, 77594), (407, 70540), (740, 38797), (814, 35270), (1628, 17635), (2035, 14108), (3527, 8140), (4070, 7054)]