20185825615

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{31223}}^1$

素因数の和:31399

約数の個数: 32

約数和(自身を含む): 25850474496

約数和(自身を除く): 5664648881

約数列:

[1, 5, 31, 43, 97, 155, 215, 485, 1333, 3007, 4171, 6665, 15035, 20855, 31223, 129301, 156115, 646505, 967913, 1342589, 3028631, 4839565, 6712945, 15143155, 41620259, 93887561, 130231133, 208101295, 469437805, 651155665, 4037165123, 20185825615]

約数ペア:

[(1, 20185825615), (5, 4037165123), (31, 651155665), (43, 469437805), (97, 208101295), (155, 130231133), (215, 93887561), (485, 41620259), (1333, 15143155), (3007, 6712945), (4171, 4839565), (6665, 3028631), (15035, 1342589), (20855, 967913), (31223, 646505), (129301, 156115)]