25307009

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 32664576

約数和(自身を除く): 7357567

約数列:

[1, 7, 13, 47, 61, 91, 97, 329, 427, 611, 679, 793, 1261, 2867, 4277, 4559, 5551, 5917, 8827, 20069, 31913, 37271, 41419, 59267, 76921, 260897, 278099, 414869, 538447, 1946693, 3615287, 25307009]

約数ペア:

[(1, 25307009), (7, 3615287), (13, 1946693), (47, 538447), (61, 414869), (91, 278099), (97, 260897), (329, 76921), (427, 59267), (611, 41419), (679, 37271), (793, 31913), (1261, 20069), (2867, 8827), (4277, 5917), (4559, 5551)]