28078101

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 45826560

約数和(自身を除く): 17748459

約数列:

[1, 3, 9, 17, 23, 51, 69, 79, 101, 153, 207, 237, 303, 391, 711, 909, 1173, 1343, 1717, 1817, 2323, 3519, 4029, 5151, 5451, 6969, 7979, 12087, 15453, 16353, 20907, 23937, 30889, 39491, 71811, 92667, 118473, 135643, 183517, 278001, 355419, 406929, 550551, 1220787, 1651653, 3119789, 9359367, 28078101]

約数ペア:

[(1, 28078101), (3, 9359367), (9, 3119789), (17, 1651653), (23, 1220787), (51, 550551), (69, 406929), (79, 355419), (101, 278001), (153, 183517), (207, 135643), (237, 118473), (303, 92667), (391, 71811), (711, 39491), (909, 30889), (1173, 23937), (1343, 20907), (1717, 16353), (1817, 15453), (2323, 12087), (3519, 7979), (4029, 6969), (5151, 5451)]