28378935

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 53508000

約数和(自身を除く): 25129065

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 139, 195, 349, 417, 585, 695, 1047, 1251, 1745, 1807, 2085, 3141, 4537, 5235, 5421, 6255, 9035, 13611, 15705, 16263, 22685, 27105, 40833, 48511, 68055, 81315, 145533, 204165, 242555, 436599, 630643, 727665, 1891929, 2182995, 3153215, 5675787, 9459645, 28378935]

約数ペア:

[(1, 28378935), (3, 9459645), (5, 5675787), (9, 3153215), (13, 2182995), (15, 1891929), (39, 727665), (45, 630643), (65, 436599), (117, 242555), (139, 204165), (195, 145533), (349, 81315), (417, 68055), (585, 48511), (695, 40833), (1047, 27105), (1251, 22685), (1745, 16263), (1807, 15705), (2085, 13611), (3141, 9035), (4537, 6255), (5235, 5421)]