136740920

素因数分解:

$2^3\times 5^1\times {\mathrm{977}}^1\times {\mathrm{3499}}^1$

素因数の和:4487

約数の個数: 32

約数和(自身を含む): 308070000

約数和(自身を除く): 171329080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 977, 1954, 3499, 3908, 4885, 6998, 7816, 9770, 13996, 17495, 19540, 27992, 34990, 39080, 69980, 139960, 3418523, 6837046, 13674092, 17092615, 27348184, 34185230, 68370460, 136740920]

約数ペア:

[(1, 136740920), (2, 68370460), (4, 34185230), (5, 27348184), (8, 17092615), (10, 13674092), (20, 6837046), (40, 3418523), (977, 139960), (1954, 69980), (3499, 39080), (3908, 34990), (4885, 27992), (6998, 19540), (7816, 17495), (9770, 13996)]