87519880

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{6379}}^1$

素因数の和:6411

約数の個数: 64

約数和(自身を含む): 229680000

約数和(自身を除く): 142160120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 6379, 6860, 12758, 13720, 25516, 31895, 44653, 51032, 63790, 89306, 127580, 178612, 223265, 255160, 312571, 357224, 446530, 625142, 893060, 1250284, 1562855, 1786120, 2187997, 2500568, 3125710, 4375994, 6251420, 8751988, 10939985, 12502840, 17503976, 21879970, 43759940, 87519880]

約数ペア:

[(1, 87519880), (2, 43759940), (4, 21879970), (5, 17503976), (7, 12502840), (8, 10939985), (10, 8751988), (14, 6251420), (20, 4375994), (28, 3125710), (35, 2500568), (40, 2187997), (49, 1786120), (56, 1562855), (70, 1250284), (98, 893060), (140, 625142), (196, 446530), (245, 357224), (280, 312571), (343, 255160), (392, 223265), (490, 178612), (686, 127580), (980, 89306), (1372, 63790), (1715, 51032), (1960, 44653), (2744, 31895), (3430, 25516), (6379, 13720), (6860, 12758)]