25207020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1069}}^1$

素因数の和:1215

約数の個数: 72

約数和(自身を含む): 77117040

約数和(自身を除く): 51910020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1069, 1179, 1310, 1572, 1965, 2138, 2358, 2620, 3207, 3930, 4276, 4716, 5345, 5895, 6414, 7860, 9621, 10690, 11790, 12828, 16035, 19242, 21380, 23580, 32070, 38484, 48105, 64140, 96210, 140039, 192420, 280078, 420117, 560156, 700195, 840234, 1260351, 1400390, 1680468, 2100585, 2520702, 2800780, 4201170, 5041404, 6301755, 8402340, 12603510, 25207020]

約数ペア:

[(1, 25207020), (2, 12603510), (3, 8402340), (4, 6301755), (5, 5041404), (6, 4201170), (9, 2800780), (10, 2520702), (12, 2100585), (15, 1680468), (18, 1400390), (20, 1260351), (30, 840234), (36, 700195), (45, 560156), (60, 420117), (90, 280078), (131, 192420), (180, 140039), (262, 96210), (393, 64140), (524, 48105), (655, 38484), (786, 32070), (1069, 23580), (1179, 21380), (1310, 19242), (1572, 16035), (1965, 12828), (2138, 11790), (2358, 10690), (2620, 9621), (3207, 7860), (3930, 6414), (4276, 5895), (4716, 5345)]