25261640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{773}}^1$

素因数の和:846

約数の個数: 64

約数和(自身を含む): 61300800

約数和(自身を除く): 36039160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 773, 817, 860, 1546, 1634, 1720, 3092, 3268, 3865, 4085, 6184, 6536, 7730, 8170, 14687, 15460, 16340, 29374, 30920, 32680, 33239, 58748, 66478, 73435, 117496, 132956, 146870, 166195, 265912, 293740, 332390, 587480, 631541, 664780, 1263082, 1329560, 2526164, 3157705, 5052328, 6315410, 12630820, 25261640]

約数ペア:

[(1, 25261640), (2, 12630820), (4, 6315410), (5, 5052328), (8, 3157705), (10, 2526164), (19, 1329560), (20, 1263082), (38, 664780), (40, 631541), (43, 587480), (76, 332390), (86, 293740), (95, 265912), (152, 166195), (172, 146870), (190, 132956), (215, 117496), (344, 73435), (380, 66478), (430, 58748), (760, 33239), (773, 32680), (817, 30920), (860, 29374), (1546, 16340), (1634, 15460), (1720, 14687), (3092, 8170), (3268, 7730), (3865, 6536), (4085, 6184)]