81591225

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1847}}^1$

素因数の和:1910

約数の個数: 48

約数和(自身を含む): 146657280

約数和(自身を除く): 65066055

約数列:

[1, 3, 5, 15, 19, 25, 31, 57, 75, 93, 95, 155, 285, 465, 475, 589, 775, 1425, 1767, 1847, 2325, 2945, 5541, 8835, 9235, 14725, 27705, 35093, 44175, 46175, 57257, 105279, 138525, 171771, 175465, 286285, 526395, 858855, 877325, 1087883, 1431425, 2631975, 3263649, 4294275, 5439415, 16318245, 27197075, 81591225]

約数ペア:

[(1, 81591225), (3, 27197075), (5, 16318245), (15, 5439415), (19, 4294275), (25, 3263649), (31, 2631975), (57, 1431425), (75, 1087883), (93, 877325), (95, 858855), (155, 526395), (285, 286285), (465, 175465), (475, 171771), (589, 138525), (775, 105279), (1425, 57257), (1767, 46175), (1847, 44175), (2325, 35093), (2945, 27705), (5541, 14725), (8835, 9235)]