25020045

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 45287424

約数和(自身を除く): 20267379

約数列:

[1, 3, 5, 9, 15, 41, 45, 71, 123, 191, 205, 213, 355, 369, 573, 615, 639, 955, 1065, 1719, 1845, 2865, 2911, 3195, 7831, 8595, 8733, 13561, 14555, 23493, 26199, 39155, 40683, 43665, 67805, 70479, 117465, 122049, 130995, 203415, 352395, 556001, 610245, 1668003, 2780005, 5004009, 8340015, 25020045]

約数ペア:

[(1, 25020045), (3, 8340015), (5, 5004009), (9, 2780005), (15, 1668003), (41, 610245), (45, 556001), (71, 352395), (123, 203415), (191, 130995), (205, 122049), (213, 117465), (355, 70479), (369, 67805), (573, 43665), (615, 40683), (639, 39155), (955, 26199), (1065, 23493), (1719, 14555), (1845, 13561), (2865, 8733), (2911, 8595), (3195, 7831)]