128889355

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 190589760

約数和(自身を除く): 61700405

約数列:

[1, 5, 7, 23, 35, 49, 89, 115, 161, 245, 257, 445, 623, 805, 1127, 1285, 1799, 2047, 3115, 4361, 5635, 5911, 8995, 10235, 12593, 14329, 21805, 22873, 29555, 41377, 62965, 71645, 100303, 114365, 160111, 206885, 289639, 501515, 526079, 800555, 1120777, 1448195, 2630395, 3682553, 5603885, 18412765, 25777871, 128889355]

約数ペア:

[(1, 128889355), (5, 25777871), (7, 18412765), (23, 5603885), (35, 3682553), (49, 2630395), (89, 1448195), (115, 1120777), (161, 800555), (245, 526079), (257, 501515), (445, 289639), (623, 206885), (805, 160111), (1127, 114365), (1285, 100303), (1799, 71645), (2047, 62965), (3115, 41377), (4361, 29555), (5635, 22873), (5911, 21805), (8995, 14329), (10235, 12593)]