13509880

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^2$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 31291560

約数和(自身を除く): 17781680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 71, 134, 142, 268, 284, 335, 355, 536, 568, 670, 710, 1340, 1420, 2680, 2840, 4757, 5041, 9514, 10082, 19028, 20164, 23785, 25205, 38056, 40328, 47570, 50410, 95140, 100820, 190280, 201640, 337747, 675494, 1350988, 1688735, 2701976, 3377470, 6754940, 13509880]

約数ペア:

[(1, 13509880), (2, 6754940), (4, 3377470), (5, 2701976), (8, 1688735), (10, 1350988), (20, 675494), (40, 337747), (67, 201640), (71, 190280), (134, 100820), (142, 95140), (268, 50410), (284, 47570), (335, 40328), (355, 38056), (536, 25205), (568, 23785), (670, 20164), (710, 19028), (1340, 10082), (1420, 9514), (2680, 5041), (2840, 4757)]