208865385

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27143}}^1$

素因数の和:27179

約数の個数: 40

約数和(自身を含む): 394130880

約数和(自身を除く): 185265495

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 7695, 27143, 81429, 135715, 244287, 407145, 515717, 732861, 1221435, 1547151, 2198583, 2578585, 3664305, 4641453, 7735755, 10992915, 13924359, 23207265, 41773077, 69621795, 208865385]

約数ペア:

[(1, 208865385), (3, 69621795), (5, 41773077), (9, 23207265), (15, 13924359), (19, 10992915), (27, 7735755), (45, 4641453), (57, 3664305), (81, 2578585), (95, 2198583), (135, 1547151), (171, 1221435), (285, 732861), (405, 515717), (513, 407145), (855, 244287), (1539, 135715), (2565, 81429), (7695, 27143)]