25417980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{20173}}^1$

素因数の和:20195

約数の個数: 72

約数和(自身を含む): 88120032

約数和(自身を除く): 62702052

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 20173, 40346, 60519, 80692, 100865, 121038, 141211, 181557, 201730, 242076, 282422, 302595, 363114, 403460, 423633, 564844, 605190, 706055, 726228, 847266, 907785, 1210380, 1270899, 1412110, 1694532, 1815570, 2118165, 2541798, 2824220, 3631140, 4236330, 5083596, 6354495, 8472660, 12708990, 25417980]

約数ペア:

[(1, 25417980), (2, 12708990), (3, 8472660), (4, 6354495), (5, 5083596), (6, 4236330), (7, 3631140), (9, 2824220), (10, 2541798), (12, 2118165), (14, 1815570), (15, 1694532), (18, 1412110), (20, 1270899), (21, 1210380), (28, 907785), (30, 847266), (35, 726228), (36, 706055), (42, 605190), (45, 564844), (60, 423633), (63, 403460), (70, 363114), (84, 302595), (90, 282422), (105, 242076), (126, 201730), (140, 181557), (180, 141211), (210, 121038), (252, 100865), (315, 80692), (420, 60519), (630, 40346), (1260, 20173)]