25519422020

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{829}}^1\times {\mathrm{3877}}^1$

素因数の和:5112

約数の個数: 48

約数和(自身を含む): 53804457840

約数和(自身を除く): 28285035820

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 829, 1588, 1658, 1985, 3316, 3877, 3970, 4145, 7754, 7940, 8290, 15508, 16580, 19385, 38770, 77540, 329113, 658226, 1316452, 1539169, 1645565, 3078338, 3214033, 3291130, 6156676, 6428066, 6582260, 7695845, 12856132, 15391690, 16070165, 30783380, 32140330, 64280660, 1275971101, 2551942202, 5103884404, 6379855505, 12759711010, 25519422020]

約数ペア:

[(1, 25519422020), (2, 12759711010), (4, 6379855505), (5, 5103884404), (10, 2551942202), (20, 1275971101), (397, 64280660), (794, 32140330), (829, 30783380), (1588, 16070165), (1658, 15391690), (1985, 12856132), (3316, 7695845), (3877, 6582260), (3970, 6428066), (4145, 6156676), (7754, 3291130), (7940, 3214033), (8290, 3078338), (15508, 1645565), (16580, 1539169), (19385, 1316452), (38770, 658226), (77540, 329113)]