399854475

素因数分解:

$3^4\times 5^2\times {\mathrm{379}}^1\times {\mathrm{521}}^1$

素因数の和:922

約数の個数: 60

約数和(自身を含む): 744048360

約数和(自身を除く): 344193885

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 379, 405, 521, 675, 1137, 1563, 1895, 2025, 2605, 3411, 4689, 5685, 7815, 9475, 10233, 13025, 14067, 17055, 23445, 28425, 30699, 39075, 42201, 51165, 70335, 85275, 117225, 153495, 197459, 211005, 255825, 351675, 592377, 767475, 987295, 1055025, 1777131, 2961885, 4936475, 5331393, 8885655, 14809425, 15994179, 26656965, 44428275, 79970895, 133284825, 399854475]

約数ペア:

[(1, 399854475), (3, 133284825), (5, 79970895), (9, 44428275), (15, 26656965), (25, 15994179), (27, 14809425), (45, 8885655), (75, 5331393), (81, 4936475), (135, 2961885), (225, 1777131), (379, 1055025), (405, 987295), (521, 767475), (675, 592377), (1137, 351675), (1563, 255825), (1895, 211005), (2025, 197459), (2605, 153495), (3411, 117225), (4689, 85275), (5685, 70335), (7815, 51165), (9475, 42201), (10233, 39075), (13025, 30699), (14067, 28425), (17055, 23445)]