26506540

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 57302784

約数和(自身を除く): 30796244

約数列:

[1, 2, 4, 5, 10, 20, 67, 131, 134, 151, 262, 268, 302, 335, 524, 604, 655, 670, 755, 1310, 1340, 1510, 2620, 3020, 8777, 10117, 17554, 19781, 20234, 35108, 39562, 40468, 43885, 50585, 79124, 87770, 98905, 101170, 175540, 197810, 202340, 395620, 1325327, 2650654, 5301308, 6626635, 13253270, 26506540]

約数ペア:

[(1, 26506540), (2, 13253270), (4, 6626635), (5, 5301308), (10, 2650654), (20, 1325327), (67, 395620), (131, 202340), (134, 197810), (151, 175540), (262, 101170), (268, 98905), (302, 87770), (335, 79124), (524, 50585), (604, 43885), (655, 40468), (670, 39562), (755, 35108), (1310, 20234), (1340, 19781), (1510, 17554), (2620, 10117), (3020, 8777)]