28934360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7949}}^1$

素因数の和:7980

約数の個数: 64

約数和(自身を含む): 80136000

約数和(自身を除く): 51201640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 7949, 15898, 31796, 39745, 55643, 63592, 79490, 103337, 111286, 158980, 206674, 222572, 278215, 317960, 413348, 445144, 516685, 556430, 723359, 826696, 1033370, 1112860, 1446718, 2066740, 2225720, 2893436, 3616795, 4133480, 5786872, 7233590, 14467180, 28934360]

約数ペア:

[(1, 28934360), (2, 14467180), (4, 7233590), (5, 5786872), (7, 4133480), (8, 3616795), (10, 2893436), (13, 2225720), (14, 2066740), (20, 1446718), (26, 1112860), (28, 1033370), (35, 826696), (40, 723359), (52, 556430), (56, 516685), (65, 445144), (70, 413348), (91, 317960), (104, 278215), (130, 222572), (140, 206674), (182, 158980), (260, 111286), (280, 103337), (364, 79490), (455, 63592), (520, 55643), (728, 39745), (910, 31796), (1820, 15898), (3640, 7949)]