15625285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 21258720

約数和(自身を除く): 5633435

約数列:

[1, 5, 13, 37, 65, 73, 89, 185, 365, 445, 481, 949, 1157, 2405, 2701, 3293, 4745, 5785, 6497, 13505, 16465, 32485, 35113, 42809, 84461, 175565, 214045, 240389, 422305, 1201945, 3125057, 15625285]

約数ペア:

[(1, 15625285), (5, 3125057), (13, 1201945), (37, 422305), (65, 240389), (73, 214045), (89, 175565), (185, 84461), (365, 42809), (445, 35113), (481, 32485), (949, 16465), (1157, 13505), (2405, 6497), (2701, 5785), (3293, 4745)]