259621375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{811}}^1$

素因数の和:1036

約数の個数: 32

約数和(自身を含む): 351134784

約数和(自身を除く): 91513409

約数列:

[1, 5, 13, 25, 65, 125, 197, 325, 811, 985, 1625, 2561, 4055, 4925, 10543, 12805, 20275, 24625, 52715, 64025, 101375, 159767, 263575, 320125, 798835, 1317875, 2076971, 3994175, 10384855, 19970875, 51924275, 259621375]

約数ペア:

[(1, 259621375), (5, 51924275), (13, 19970875), (25, 10384855), (65, 3994175), (125, 2076971), (197, 1317875), (325, 798835), (811, 320125), (985, 263575), (1625, 159767), (2561, 101375), (4055, 64025), (4925, 52715), (10543, 24625), (12805, 20275)]