25707420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{569}}^1$

素因数の和:835

約数の個数: 72

約数和(自身を含む): 78427440

約数和(自身を除く): 52720020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 502, 569, 753, 1004, 1138, 1255, 1506, 1707, 2259, 2276, 2510, 2845, 3012, 3414, 3765, 4518, 5020, 5121, 5690, 6828, 7530, 8535, 9036, 10242, 11295, 11380, 15060, 17070, 20484, 22590, 25605, 34140, 45180, 51210, 102420, 142819, 285638, 428457, 571276, 714095, 856914, 1285371, 1428190, 1713828, 2142285, 2570742, 2856380, 4284570, 5141484, 6426855, 8569140, 12853710, 25707420]

約数ペア:

[(1, 25707420), (2, 12853710), (3, 8569140), (4, 6426855), (5, 5141484), (6, 4284570), (9, 2856380), (10, 2570742), (12, 2142285), (15, 1713828), (18, 1428190), (20, 1285371), (30, 856914), (36, 714095), (45, 571276), (60, 428457), (90, 285638), (180, 142819), (251, 102420), (502, 51210), (569, 45180), (753, 34140), (1004, 25605), (1138, 22590), (1255, 20484), (1506, 17070), (1707, 15060), (2259, 11380), (2276, 11295), (2510, 10242), (2845, 9036), (3012, 8535), (3414, 7530), (3765, 6828), (4518, 5690), (5020, 5121)]