981225

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{89}}^1$

素因数の和:119

約数の個数: 54

約数和(自身を含む): 2067390

約数和(自身を除く): 1086165

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 89, 105, 147, 175, 225, 245, 267, 315, 441, 445, 525, 623, 735, 801, 1225, 1335, 1575, 1869, 2205, 2225, 3115, 3675, 4005, 4361, 5607, 6675, 9345, 11025, 13083, 15575, 20025, 21805, 28035, 39249, 46725, 65415, 109025, 140175, 196245, 327075, 981225]

約数ペア:

[(1, 981225), (3, 327075), (5, 196245), (7, 140175), (9, 109025), (15, 65415), (21, 46725), (25, 39249), (35, 28035), (45, 21805), (49, 20025), (63, 15575), (75, 13083), (89, 11025), (105, 9345), (147, 6675), (175, 5607), (225, 4361), (245, 4005), (267, 3675), (315, 3115), (441, 2225), (445, 2205), (525, 1869), (623, 1575), (735, 1335), (801, 1225)]